2012121010120 has 48 divisors (see below), whose sum is σ = 4902312595860. Its totient is φ = 742936985856.

The previous prime is 2012121010111. The next prime is 2012121010183. The reversal of 2012121010120 is 210101212102.

It can be written as a sum of positive squares in 6 ways, for example, as 24511659844 + 1987609350276 = 156562^2 + 1409826^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 2012121010120.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148818759 + ... + 148832278.

Almost surely, 2^{2012121010120} is an apocalyptic number.

2012121010120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012121010120 is an abundant number, since it is smaller than the sum of its proper divisors (2890191585740).

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

2012121010120 is a wasteful number, since it uses less digits than its factorization.

2012121010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297651074 (or 297651057 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2012121010120 its reverse (210101212102), we get a palindrome (2222222222222).

The spelling of 2012121010120 in words is "two trillion, twelve billion, one hundred twenty-one million, ten thousand, one hundred twenty".