20001202322231 has 24 divisors (see below), whose sum is σ = 22041314805600. Its totient is φ = 18137829964800.

The previous prime is 20001202322201. The next prime is 20001202322317. The reversal of 20001202322231 is 13222320210002.

It is a happy number.

It is not a de Polignac number, because 20001202322231 - 2³⁴ = 19984022453047 is a prime.

It is a super-2 number, since 2×20001202322231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001202322201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 405695 + ... + 6337743.

It is an arithmetic number, because the mean of its divisors is an integer number (918388116900).

Almost surely, 2^{20001202322231} is an apocalyptic number.

20001202322231 is a deficient number, since it is larger than the sum of its proper divisors (2040112483369).

20001202322231 is a wasteful number, since it uses less digits than its factorization.

20001202322231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5932427 (or 5932414 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20001202322231 its reverse (13222320210002), we get a palindrome (33223522532233).

The spelling of 20001202322231 in words is "twenty trillion, one billion, two hundred two million, three hundred twenty-two thousand, two hundred thirty-one".