12426553542220 has 24 divisors (see below), whose sum is σ = 26095907197584. Its totient is φ = 4970593843776.

The previous prime is 12426553542163. The next prime is 12426553542239. The reversal of 12426553542220 is 2224535562421.

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, 2188839 + ... + 5444641.

It is an arithmetic number, because the mean of its divisors is an integer number (1087329466566).

Almost surely, 2^{12426553542220} is an apocalyptic number.

12426553542220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12426553542220 is an abundant number, since it is smaller than the sum of its proper divisors (13669353655364).

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

12426553542220 is a wasteful number, since it uses less digits than its factorization.

12426553542220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3446649 (or 3446647 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 43.

The spelling of 12426553542220 in words is "twelve trillion, four hundred twenty-six billion, five hundred fifty-three million, five hundred forty-two thousand, two hundred twenty".