12099291015 has 16 divisors (see below), whose sum is σ = 22124418048. Its totient is φ = 5531104416.

The previous prime is 12099290989. The next prime is 12099291073. The reversal of 12099291015 is 51019299021.

It is not a de Polignac number, because 12099291015 - 2⁸ = 12099290759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57615567 + ... + 57615776.

It is an arithmetic number, because the mean of its divisors is an integer number (1382776128).

Almost surely, 2^12099291015 is an apocalyptic number.

12099291015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12099291015 is a deficient number, since it is larger than the sum of its proper divisors (10025127033).

12099291015 is a wasteful number, since it uses less digits than its factorization.

12099291015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115231358.

The product of its (nonzero) digits is 14580, while the sum is 39.

The spelling of 12099291015 in words is "twelve billion, ninety-nine million, two hundred ninety-one thousand, fifteen".