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12211102232 = 2372142921799
BaseRepresentation
bin10110101111101011…
…01010001000011000
31011112000100021011122
423113311222020120
5200002020232412
65335410144412
7611413441100
oct132765521030
934460307148
1012211102232
1151a693792a
122449582108
1311c7b082a4
1483ba90200
154b706e572
hex2d7d6a218

12211102232 has 48 divisors (see below), whose sum is σ = 26653770000. Its totient is φ = 5229427392.

The previous prime is 12211102217. The next prime is 12211102237. The reversal of 12211102232 is 23220111221.

12211102232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×122111022322 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12211102232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211102237) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 549269 + ... + 571067.

It is an arithmetic number, because the mean of its divisors is an integer number (555286875).

Almost surely, 212211102232 is an apocalyptic number.

It is an amenable number.

12211102232 is an abundant number, since it is smaller than the sum of its proper divisors (14442667768).

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

12211102232 is a wasteful number, since it uses less digits than its factorization.

12211102232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23248 (or 23237 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12211102232 its reverse (23220111221), we get a palindrome (35431213453).

The spelling of 12211102232 in words is "twelve billion, two hundred eleven million, one hundred two thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 1429 2858 5716 10003 11432 20006 21799 40012 43598 70021 80024 87196 140042 152593 174392 280084 305186 560168 610372 1068151 1220744 2136302 4272604 8545208 31150771 62301542 124603084 218055397 249206168 436110794 872221588 1526387779 1744443176 3052775558 6105551116 12211102232