2021213022231 has 128 divisors (see below), whose sum is σ = 3155917363200. Its totient is φ = 1139969064960.

The previous prime is 2021213022229. The next prime is 2021213022259. The reversal of 2021213022231 is 1322203121202.

It is not a de Polignac number, because 2021213022231 - 2¹ = 2021213022229 is a prime.

It is a super-2 number, since 2×2021213022231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021213022198 and 2021213022207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021213022131) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2455908486 + ... + 2455909308.

It is an arithmetic number, because the mean of its divisors is an integer number (24655604400).

Almost surely, 2^{2021213022231} is an apocalyptic number.

2021213022231 is a deficient number, since it is larger than the sum of its proper divisors (1134704340969).

2021213022231 is a wasteful number, since it uses less digits than its factorization.

2021213022231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2021213022231 its reverse (1322203121202), we get a palindrome (3343416143433).

The spelling of 2021213022231 in words is "two trillion, twenty-one billion, two hundred thirteen million, twenty-two thousand, two hundred thirty-one".