20005226520231 has 16 divisors (see below), whose sum is σ = 26920773871200. Its totient is φ = 13213270482048.

The previous prime is 20005226520199. The next prime is 20005226520239. The reversal of 20005226520231 is 13202562250002.

It is not a de Polignac number, because 20005226520231 - 2⁵ = 20005226520199 is a prime.

It is a super-2 number, since 2×20005226520231² (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 (20005226520239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 883705 + ... + 6386813.

It is an arithmetic number, because the mean of its divisors is an integer number (1682548366950).

Almost surely, 2^{20005226520231} is an apocalyptic number.

20005226520231 is a deficient number, since it is larger than the sum of its proper divisors (6915547350969).

20005226520231 is a wasteful number, since it uses less digits than its factorization.

20005226520231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5514338.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 20005226520231 its reverse (13202562250002), we get a palindrome (33207788770233).

The spelling of 20005226520231 in words is "twenty trillion, five billion, two hundred twenty-six million, five hundred twenty thousand, two hundred thirty-one".