2112010220121 has 16 divisors (see below), whose sum is σ = 2888547625920. Its totient is φ = 1371899934720.

The previous prime is 2112010220101. The next prime is 2112010220189. The reversal of 2112010220121 is 1210220102112.

It is not a de Polignac number, because 2112010220121 - 2³⁷ = 1974571266649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2112010220121.

It is not an unprimeable number, because it can be changed into a prime (2112010220101) 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, 19962120 + ... + 20067641.

It is an arithmetic number, because the mean of its divisors is an integer number (180534226620).

Almost surely, 2^{2112010220121} is an apocalyptic number.

It is an amenable number.

2112010220121 is a deficient number, since it is larger than the sum of its proper divisors (776537405799).

2112010220121 is a wasteful number, since it uses less digits than its factorization.

2112010220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40030216.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2112010220121 its reverse (1210220102112), we get a palindrome (3322230322233).

The spelling of 2112010220121 in words is "two trillion, one hundred twelve billion, ten million, two hundred twenty thousand, one hundred twenty-one".