10012120121000 has 32 divisors (see below), whose sum is σ = 23428361085480. Its totient is φ = 4004848048000.

The previous prime is 10012120120949. The next prime is 10012120121027. The reversal of 10012120121000 is 12102121001.

10012120121000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5344040111524 + 4668080009476 = 2311718^2 + 2160574^2 .

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, 5006059061 + ... + 5006061060.

Almost surely, 2^{10012120121000} is an apocalyptic number.

10012120121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10012120121000 is an abundant number, since it is smaller than the sum of its proper divisors (13416240964480).

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

10012120121000 is a wasteful number, since it uses less digits than its factorization.

10012120121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10012120142 (or 10012120128 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10012120121000 its reverse (12102121001), we get a palindrome (10024222242001).

The spelling of 10012120121000 in words is "ten trillion, twelve billion, one hundred twenty million, one hundred twenty-one thousand".