221013020020131 has 16 divisors (see below), whose sum is σ = 329235683605920. Its totient is φ = 146527969070880.

The previous prime is 221013020020063. The next prime is 221013020020171. The reversal of 221013020020131 is 131020020310122.

221013020020131 is a `hidden beast` number, since 2 + 210 + 1 + 302 + 0 + 0 + 20 + 131 = 666.

It is not a de Polignac number, because 221013020020131 - 2⁴⁵ = 185828647931299 is a prime.

It is a super-2 number, since 2×221013020020131² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221013020020171) 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, 22612336020 + ... + 22612345793.

It is an arithmetic number, because the mean of its divisors is an integer number (20577230225370).

Almost surely, 2^{221013020020131} is an apocalyptic number.

221013020020131 is a deficient number, since it is larger than the sum of its proper divisors (108222663585789).

221013020020131 is a wasteful number, since it uses less digits than its factorization.

221013020020131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45224682003 (or 45224681997 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 221013020020131 its reverse (131020020310122), we get a palindrome (352033040330253).

The spelling of 221013020020131 in words is "two hundred twenty-one trillion, thirteen billion, twenty million, twenty thousand, one hundred thirty-one".