12472728220 has 24 divisors (see below), whose sum is σ = 27571294800. Its totient is φ = 4726507392.

The previous prime is 12472728217. The next prime is 12472728227. The reversal of 12472728220 is 2282727421.

It is a self number, because there is not a number n which added to its sum of digits gives 12472728220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12472728227) 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, 16411105 + ... + 16411864.

It is an arithmetic number, because the mean of its divisors is an integer number (1148803950).

Almost surely, 2^12472728220 is an apocalyptic number.

12472728220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12472728220 is an abundant number, since it is smaller than the sum of its proper divisors (15098566580).

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

12472728220 is a wasteful number, since it uses less digits than its factorization.

12472728220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32822997 (or 32822995 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 37.

The spelling of 12472728220 in words is "twelve billion, four hundred seventy-two million, seven hundred twenty-eight thousand, two hundred twenty".