12219940507 has 4 divisors (see below), whose sum is σ = 12225479616. Its totient is φ = 12214401400.

The previous prime is 12219940477. The next prime is 12219940519. The reversal of 12219940507 is 70504991221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12219940507 - 2⁷ = 12219940379 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12219940507.

It is not an unprimeable number, because it can be changed into a prime (12219940547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2766244 + ... + 2770657.

It is an arithmetic number, because the mean of its divisors is an integer number (3056369904).

Almost surely, 2^12219940507 is an apocalyptic number.

12219940507 is a deficient number, since it is larger than the sum of its proper divisors (5539109).

12219940507 is an equidigital number, since it uses as much as digits as its factorization.

12219940507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5539108.

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 12219940507 in words is "twelve billion, two hundred nineteen million, nine hundred forty thousand, five hundred seven".