12212624640544 has 24 divisors (see below), whose sum is σ = 24044110327440. Its totient is φ = 6106183922496.

The previous prime is 12212624640539. The next prime is 12212624640553. The reversal of 12212624640544 is 44504642621221.

It is a super-2 number, since 2×12212624640544² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12212624640544.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2457534 + ... + 5519485.

It is an arithmetic number, because the mean of its divisors is an integer number (1001837930310).

Almost surely, 2^{12212624640544} is an apocalyptic number.

It is an amenable number.

12212624640544 is a deficient number, since it is larger than the sum of its proper divisors (11831485686896).

12212624640544 is an equidigital number, since it uses as much as digits as its factorization.

12212624640544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8024872 (or 8024864 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 43.

The spelling of 12212624640544 in words is "twelve trillion, two hundred twelve billion, six hundred twenty-four million, six hundred forty thousand, five hundred forty-four".