111112102121010 has 32 divisors (see below), whose sum is σ = 280704257991360. Its totient is φ = 28070425798848.

The previous prime is 111112102120993. The next prime is 111112102121071. The reversal of 111112102121010 is 10121201211111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon 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, 97466755677 + ... + 97466756816.

It is an arithmetic number, because the mean of its divisors is an integer number (8772008062230).

Almost surely, 2^{111112102121010} is an apocalyptic number.

111112102121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111112102121010 is an abundant number, since it is smaller than the sum of its proper divisors (169592155870350).

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

111112102121010 is a wasteful number, since it uses less digits than its factorization.

111112102121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194933512522.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111112102121010 its reverse (10121201211111), we get a palindrome (121233303332121).

The spelling of 111112102121010 in words is "one hundred eleven trillion, one hundred twelve billion, one hundred two million, one hundred twenty-one thousand, ten".