12225622815 has 96 divisors (see below), whose sum is σ = 25309380096. Its totient is φ = 5545687680.

The previous prime is 12225622781. The next prime is 12225622831. The reversal of 12225622815 is 51822652221.

12225622815 is a `hidden beast` number, since 1 + 2 + 2 + 25 + 622 + 8 + 1 + 5 = 666.

It is not a de Polignac number, because 12225622815 - 2¹³ = 12225614623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12225622815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1108669 + ... + 1119641.

It is an arithmetic number, because the mean of its divisors is an integer number (263639376).

Almost surely, 2^12225622815 is an apocalyptic number.

12225622815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12225622815 is an abundant number, since it is smaller than the sum of its proper divisors (13083757281).

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

12225622815 is a wasteful number, since it uses less digits than its factorization.

12225622815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11131 (or 11119 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The spelling of 12225622815 in words is "twelve billion, two hundred twenty-five million, six hundred twenty-two thousand, eight hundred fifteen".