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2112202110111 = 34289164156533
BaseRepresentation
bin11110101111001001000…
…011100111010010011111
321110220221222220121111220
4132233021003213102133
5234101242220010421
64254155433344423
7305413223463432
oct36571103472237
97426858817456
102112202110111
11744864031905
122a1438268113
131242450511c2
14743342dd819
1539e235ac3c6
hex1ebc90e749f

2112202110111 has 8 divisors (see below), whose sum is σ = 2816926123440. Its totient is φ = 1407806418432.

The previous prime is 2112202110101. The next prime is 2112202110127. The reversal of 2112202110111 is 1110112022112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2112202110111 - 218 = 2112201847967 is a prime.

It is a super-2 number, since 2×21122021101112 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112202110101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82065400 + ... + 82091133.

It is an arithmetic number, because the mean of its divisors is an integer number (352115765430).

Almost surely, 22112202110111 is an apocalyptic number.

2112202110111 is a deficient number, since it is larger than the sum of its proper divisors (704724013329).

2112202110111 is a wasteful number, since it uses less digits than its factorization.

2112202110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164160825.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2112202110111 its reverse (1110112022112), we get a palindrome (3222314132223).

The spelling of 2112202110111 in words is "two trillion, one hundred twelve billion, two hundred two million, one hundred ten thousand, one hundred eleven".

Divisors: 1 3 4289 12867 164156533 492469599 704067370037 2112202110111