402220103213231 has 4 divisors (see below), whose sum is σ = 402220144420992. Its totient is φ = 402220062005472.

The previous prime is 402220103213179. The next prime is 402220103213251. The reversal of 402220103213231 is 132312301022204.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 402220103213231 - 2⁶ = 402220103213167 is a prime.

It is a super-2 number, since 2×402220103213231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402220103213231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402220103213251) 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, 3218546 + ... + 28544688.

It is an arithmetic number, because the mean of its divisors is an integer number (100555036105248).

Almost surely, 2^{402220103213231} is an apocalyptic number.

402220103213231 is a deficient number, since it is larger than the sum of its proper divisors (41207761).

402220103213231 is a wasteful number, since it uses less digits than its factorization.

402220103213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41207760.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 402220103213231 its reverse (132312301022204), we get a palindrome (534532404235435).

The spelling of 402220103213231 in words is "four hundred two trillion, two hundred twenty billion, one hundred three million, two hundred thirteen thousand, two hundred thirty-one".