10402220231 has 12 divisors (see below), whose sum is σ = 11390520240. Its totient is φ = 9494147520.

The previous prime is 10402220201. The next prime is 10402220251. The reversal of 10402220231 is 13202220401.

It is not a de Polignac number, because 10402220231 - 2¹⁰ = 10402219207 is a prime.

It is a super-2 number, since 2×10402220231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10402220201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330755 + ... + 360836.

It is an arithmetic number, because the mean of its divisors is an integer number (949210020).

Almost surely, 2^10402220231 is an apocalyptic number.

10402220231 is a deficient number, since it is larger than the sum of its proper divisors (988300009).

10402220231 is an equidigital number, since it uses as much as digits as its factorization.

10402220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691706 (or 691693 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 10402220231 its reverse (13202220401), we get a palindrome (23604440632).

The spelling of 10402220231 in words is "ten billion, four hundred two million, two hundred twenty thousand, two hundred thirty-one".