12219966458 has 16 divisors (see below), whose sum is σ = 21144297024. Its totient is φ = 5188182720.

The previous prime is 12219966439. The next prime is 12219966491. The reversal of 12219966458 is 85466991221.

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, 4077263 + ... + 4080258.

It is an arithmetic number, because the mean of its divisors is an integer number (1321518564).

Almost surely, 2^12219966458 is an apocalyptic number.

12219966458 is a deficient number, since it is larger than the sum of its proper divisors (8924330566).

12219966458 is a wasteful number, since it uses less digits than its factorization.

12219966458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8157637.

The product of its digits is 1866240, while the sum is 53.

The spelling of 12219966458 in words is "twelve billion, two hundred nineteen million, nine hundred sixty-six thousand, four hundred fifty-eight".