2112010012021 has 96 divisors (see below), whose sum is σ = 2731969513728. Its totient is φ = 1589696962560.

The previous prime is 2112010012009. The next prime is 2112010012027. The reversal of 2112010012021 is 1202100102112.

It is not a de Polignac number, because 2112010012021 - 2⁷ = 2112010011893 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 2112010011992 and 2112010012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112010012027) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2175087066 + ... + 2175088036.

It is an arithmetic number, because the mean of its divisors is an integer number (28458015768).

Almost surely, 2^{2112010012021} is an apocalyptic number.

It is an amenable number.

2112010012021 is a deficient number, since it is larger than the sum of its proper divisors (619959501707).

2112010012021 is a wasteful number, since it uses less digits than its factorization.

2112010012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439 (or 1410 counting only the distinct ones).

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

Adding to 2112010012021 its reverse (1202100102112), we get a palindrome (3314110114133).

Subtracting from 2112010012021 its reverse (1202100102112), we obtain a palindrome (909909909909).

The spelling of 2112010012021 in words is "two trillion, one hundred twelve billion, ten million, twelve thousand, twenty-one".