2212021232131 has 4 divisors (see below), whose sum is σ = 2212050748672. Its totient is φ = 2211991715592.

The previous prime is 2212021232077. The next prime is 2212021232137. The reversal of 2212021232131 is 1312321202122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2212021232131 - 2³³ = 2203431297539 is a prime.

It is a super-2 number, since 2×2212021232131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212021232137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14645571 + ... + 14795836.

It is an arithmetic number, because the mean of its divisors is an integer number (553012687168).

Almost surely, 2^{2212021232131} is an apocalyptic number.

2212021232131 is a deficient number, since it is larger than the sum of its proper divisors (29516541).

2212021232131 is an equidigital number, since it uses as much as digits as its factorization.

2212021232131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29516540.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2212021232131 its reverse (1312321202122), we get a palindrome (3524342434253).

The spelling of 2212021232131 in words is "two trillion, two hundred twelve billion, twenty-one million, two hundred thirty-two thousand, one hundred thirty-one".