12220630654 has 4 divisors (see below), whose sum is σ = 18330945984. Its totient is φ = 6110315326.

The previous prime is 12220630649. The next prime is 12220630703. The reversal of 12220630654 is 45603602221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45603602221 = 41 ⋅1112282981.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055157662 + ... + 3055157665.

It is an arithmetic number, because the mean of its divisors is an integer number (4582736496).

Almost surely, 2^12220630654 is an apocalyptic number.

12220630654 is a deficient number, since it is larger than the sum of its proper divisors (6110315330).

12220630654 is an equidigital number, since it uses as much as digits as its factorization.

12220630654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110315329.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 12220630654 in words is "twelve billion, two hundred twenty million, six hundred thirty thousand, six hundred fifty-four".