12227518092 has 12 divisors (see below), whose sum is σ = 28530875576. Its totient is φ = 4075839360.

The previous prime is 12227518087. The next prime is 12227518099. The reversal of 12227518092 is 29081572221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 12227518092.

It is not an unprimeable number, because it can be changed into a prime (12227518099) 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, 509479909 + ... + 509479932.

Almost surely, 2^12227518092 is an apocalyptic number.

12227518092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12227518092 is an abundant number, since it is smaller than the sum of its proper divisors (16303357484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12227518092 is a wasteful number, since it uses less digits than its factorization.

12227518092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018959848 (or 1018959846 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The spelling of 12227518092 in words is "twelve billion, two hundred twenty-seven million, five hundred eighteen thousand, ninety-two".