12147247092 has 24 divisors (see below), whose sum is σ = 28348309696. Its totient is φ = 4048406208.

The previous prime is 12147247061. The next prime is 12147247097. The reversal of 12147247092 is 29074274121.

It is a super-2 number, since 2×12147247092² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12147247092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12147247097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6808 + ... + 156015.

Almost surely, 2^12147247092 is an apocalyptic number.

12147247092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12147247092 is an abundant number, since it is smaller than the sum of its proper divisors (16201062604).

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

12147247092 is a wasteful number, since it uses less digits than its factorization.

12147247092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169047 (or 169045 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 12147247092 in words is "twelve billion, one hundred forty-seven million, two hundred forty-seven thousand, ninety-two".