112002121020 has 96 divisors (see below), whose sum is σ = 332123210496. Its totient is φ = 28104422400.

The previous prime is 112002120943. The next prime is 112002121031. The reversal of 112002121020 is 20121200211.

It is a super-2 number, since 2×112002121020² (a number of 23 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 112002120987 and 112002121005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6816615 + ... + 6833025.

It is an arithmetic number, because the mean of its divisors is an integer number (3459616776).

Almost surely, 2^112002121020 is an apocalyptic number.

112002121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112002121020 is an abundant number, since it is smaller than the sum of its proper divisors (220121089476).

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

112002121020 is a wasteful number, since it uses less digits than its factorization.

112002121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23131 (or 23129 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 112002121020 its reverse (20121200211), we get a palindrome (132123321231).

The spelling of 112002121020 in words is "one hundred twelve billion, two million, one hundred twenty-one thousand, twenty".