12220660546 has 16 divisors (see below), whose sum is σ = 18388670976. Its totient is φ = 6091130736.

The previous prime is 12220660493. The next prime is 12220660561. The reversal of 12220660546 is 64506602221.

It is a super-2 number, since 2×12220660546² (a number of 21 digits) contains 22 as substring.

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, 1009240 + ... + 1021276.

It is an arithmetic number, because the mean of its divisors is an integer number (1149291936).

Almost surely, 2^12220660546 is an apocalyptic number.

12220660546 is a deficient number, since it is larger than the sum of its proper divisors (6168010430).

12220660546 is a wasteful number, since it uses less digits than its factorization.

12220660546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13593.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 12220660546 in words is "twelve billion, two hundred twenty million, six hundred sixty thousand, five hundred forty-six".