12208912331 has 16 divisors (see below), whose sum is σ = 15261699840. Its totient is φ = 9488314080.

The previous prime is 12208912319. The next prime is 12208912349. The reversal of 12208912331 is 13321980221.

It is not a de Polignac number, because 12208912331 - 2¹⁴ = 12208895947 is a prime.

It is a super-2 number, since 2×12208912331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12208912301) 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, 179996 + ... + 238361.

It is an arithmetic number, because the mean of its divisors is an integer number (953856240).

Almost surely, 2^12208912331 is an apocalyptic number.

12208912331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12208912331 is a deficient number, since it is larger than the sum of its proper divisors (3052787509).

12208912331 is a wasteful number, since it uses less digits than its factorization.

12208912331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418754.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 12208912331 in words is "twelve billion, two hundred eight million, nine hundred twelve thousand, three hundred thirty-one".