10012012120 has 32 divisors (see below), whose sum is σ = 24574939920. Its totient is φ = 3640731520.

The previous prime is 10012012111. The next prime is 10012012163. The reversal of 10012012120 is 2121021001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10012012097 and 10012012106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11376847 + ... + 11377726.

Almost surely, 2^10012012120 is an apocalyptic number.

10012012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10012012120 is an abundant number, since it is smaller than the sum of its proper divisors (14562927800).

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

10012012120 is a wasteful number, since it uses less digits than its factorization.

10012012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22754595 (or 22754591 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10012012120 its reverse (2121021001), we get a palindrome (12133033121).

The spelling of 10012012120 in words is "ten billion, twelve million, twelve thousand, one hundred twenty".