111211110102 has 32 divisors (see below), whose sum is σ = 235850838912. Its totient is φ = 34838655104.

The previous prime is 111211110067. The next prime is 111211110113. The reversal of 111211110102 is 201011112111.

111211110102 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×111211110102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728508 + ... + 867839.

It is an arithmetic number, because the mean of its divisors is an integer number (7370338716).

Almost surely, 2^111211110102 is an apocalyptic number.

111211110102 is an abundant number, since it is smaller than the sum of its proper divisors (124639728810).

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

111211110102 is a wasteful number, since it uses less digits than its factorization.

111211110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597052.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111211110102 its reverse (201011112111), we get a palindrome (312222222213).

The spelling of 111211110102 in words is "one hundred eleven billion, two hundred eleven million, one hundred ten thousand, one hundred two".