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12211102112 = 2511257347389
BaseRepresentation
bin10110101111101011…
…01010000110100000
31011112000100021000012
423113311222012200
5200002020231422
65335410144052
7611413440536
oct132765520640
934460307005
1012211102112
1151a6937830
122449582028
1311c7b08211
1483ba90156
154b706e4e2
hex2d7d6a1a0

12211102112 has 96 divisors (see below), whose sum is σ = 26471914560. Its totient is φ = 5498798080.

The previous prime is 12211102103. The next prime is 12211102121. The reversal of 12211102112 is 21120111221.

12211102112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12211102103) and next prime (12211102121).

It is a super-2 number, since 2×122111021122 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31390814 + ... + 31391202.

It is an arithmetic number, because the mean of its divisors is an integer number (275749110).

Almost surely, 212211102112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12211102112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13235957280).

12211102112 is an abundant number, since it is smaller than the sum of its proper divisors (14260812448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211102112 is a wasteful number, since it uses less digits than its factorization.

12211102112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12211102112 its reverse (21120111221), we get a palindrome (33331213333).

The spelling of 12211102112 in words is "twelve billion, two hundred eleven million, one hundred two thousand, one hundred twelve".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 257 347 352 389 514 694 778 1028 1388 1556 2056 2776 2827 3112 3817 4112 4279 5552 5654 6224 7634 8224 8558 11104 11308 12448 15268 17116 22616 30536 34232 45232 61072 68464 89179 90464 99973 122144 134983 136928 178358 199946 269966 356716 399892 539932 713432 799784 980969 1079864 1099703 1426864 1484813 1599568 1961938 2159728 2199406 2853728 2969626 3199136 3923876 4319456 4398812 5939252 7847752 8797624 11878504 15695504 17595248 23757008 31391008 34690631 35190496 47514016 69381262 138762524 277525048 381596941 555050096 763193882 1110100192 1526387764 3052775528 6105551056 12211102112