12213635907 has 16 divisors (see below), whose sum is σ = 18810306432. Its totient is φ = 6966779520.

The previous prime is 12213635897. The next prime is 12213635909. The reversal of 12213635907 is 70953631221.

It is a happy number.

It is not a de Polignac number, because 12213635907 - 2⁷ = 12213635779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12213635909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10885033 + ... + 10886154.

It is an arithmetic number, because the mean of its divisors is an integer number (1175644152).

Almost surely, 2^12213635907 is an apocalyptic number.

12213635907 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12213635907 is a deficient number, since it is larger than the sum of its proper divisors (6596670525).

12213635907 is a wasteful number, since it uses less digits than its factorization.

12213635907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21771218.

The product of its (nonzero) digits is 68040, while the sum is 39.

The spelling of 12213635907 in words is "twelve billion, two hundred thirteen million, six hundred thirty-five thousand, nine hundred seven".