12230401656 has 32 divisors (see below), whose sum is σ = 33355641600. Its totient is φ = 3706182240.

The previous prime is 12230401621. The next prime is 12230401691. The reversal of 12230401656 is 65610403221.

It is an interprime number because it is at equal distance from previous prime (12230401621) and next prime (12230401691).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23163376 + ... + 23163903.

It is an arithmetic number, because the mean of its divisors is an integer number (1042363800).

Almost surely, 2^12230401656 is an apocalyptic number.

It is an amenable number.

12230401656 is an abundant number, since it is smaller than the sum of its proper divisors (21125239944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12230401656 is a wasteful number, since it uses less digits than its factorization.

12230401656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46327299 (or 46327295 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 12230401656 its reverse (65610403221), we get a palindrome (77840804877).

The spelling of 12230401656 in words is "twelve billion, two hundred thirty million, four hundred one thousand, six hundred fifty-six".