2112202131021 has 12 divisors (see below), whose sum is σ = 3102669797760. Its totient is φ = 1384268062920.

The previous prime is 2112202131001. The next prime is 2112202131037. The reversal of 2112202131021 is 1201312022112.

2112202131021 is a `hidden beast` number, since 211 + 220 + 213 + 1 + 0 + 21 = 666.

It is not a de Polignac number, because 2112202131021 - 2¹¹ = 2112202128973 is a prime.

It is a super-2 number, since 2×2112202131021² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112202130985 and 2112202131003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112202131001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1988890365 + ... + 1988891426.

It is an arithmetic number, because the mean of its divisors is an integer number (258555816480).

Almost surely, 2^{2112202131021} is an apocalyptic number.

It is an amenable number.

2112202131021 is a deficient number, since it is larger than the sum of its proper divisors (990467666739).

2112202131021 is a wasteful number, since it uses less digits than its factorization.

2112202131021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977781856 (or 3977781853 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2112202131021 its reverse (1201312022112), we get a palindrome (3313514153133).

The spelling of 2112202131021 in words is "two trillion, one hundred twelve billion, two hundred two million, one hundred thirty-one thousand, twenty-one".