401222203131 has 4 divisors (see below), whose sum is σ = 534962937512. Its totient is φ = 267481468752.

The previous prime is 401222203043. The next prime is 401222203153. The reversal of 401222203131 is 131302222104.

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

It is not a de Polignac number, because 401222203131 - 2²⁵ = 401188648699 is a prime.

It is a super-2 number, since 2×401222203131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401222203098 and 401222203107.

It is not an unprimeable number, because it can be changed into a prime (401222203171) 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, 66870367186 + ... + 66870367191.

It is an arithmetic number, because the mean of its divisors is an integer number (133740734378).

Almost surely, 2^401222203131 is an apocalyptic number.

401222203131 is a deficient number, since it is larger than the sum of its proper divisors (133740734381).

401222203131 is a wasteful number, since it uses less digits than its factorization.

401222203131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133740734380.

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

Adding to 401222203131 its reverse (131302222104), we get a palindrome (532524425235).

The spelling of 401222203131 in words is "four hundred one billion, two hundred twenty-two million, two hundred three thousand, one hundred thirty-one".