12546356022 has 24 divisors (see below), whose sum is σ = 28060668480. Its totient is φ = 4047211440.

The previous prime is 12546356021. The next prime is 12546356023. The reversal of 12546356022 is 22065364521.

12546356022 is a `hidden beast` number, since 1 + 2 + 5 + 46 + 3 + 5 + 602 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (12546356021) and next prime (12546356023).

It is a super-2 number, since 2×12546356022² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12546356021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11241697 + ... + 11242812.

It is an arithmetic number, because the mean of its divisors is an integer number (1169194520).

Almost surely, 2^12546356022 is an apocalyptic number.

12546356022 is an abundant number, since it is smaller than the sum of its proper divisors (15514312458).

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

12546356022 is a wasteful number, since it uses less digits than its factorization.

12546356022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22484548 (or 22484545 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 12546356022 in words is "twelve billion, five hundred forty-six million, three hundred fifty-six thousand, twenty-two".