1021110110112 has 96 divisors (see below), whose sum is σ = 2797369948800. Its totient is φ = 325522897920.

The previous prime is 1021110110107. The next prime is 1021110110113. The reversal of 1021110110112 is 2110110111201.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1021110110113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16637562 + ... + 16698822.

It is an arithmetic number, because the mean of its divisors is an integer number (29139270300).

Almost surely, 2^{1021110110112} is an apocalyptic number.

1021110110112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021110110112 is an abundant number, since it is smaller than the sum of its proper divisors (1776259838688).

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

1021110110112 is a wasteful number, since it uses less digits than its factorization.

1021110110112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68846 (or 68838 counting only the distinct ones).

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

Adding to 1021110110112 its reverse (2110110111201), we get a palindrome (3131220221313).

The spelling of 1021110110112 in words is "one trillion, twenty-one billion, one hundred ten million, one hundred ten thousand, one hundred twelve".