55012112226 has 32 divisors (see below), whose sum is σ = 123211745280. Its totient is φ = 18192979728.

The previous prime is 55012112219. The next prime is 55012112227. The reversal of 55012112226 is 62221121055.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 55012112226.

It is not an unprimeable number, because it can be changed into a prime (55012112227) 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, 4003941 + ... + 4017656.

It is an arithmetic number, because the mean of its divisors is an integer number (3850367040).

Almost surely, 2^55012112226 is an apocalyptic number.

55012112226 is an abundant number, since it is smaller than the sum of its proper divisors (68199633054).

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

55012112226 is a wasteful number, since it uses less digits than its factorization.

55012112226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8021735 (or 8021729 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 55012112226 in words is "fifty-five billion, twelve million, one hundred twelve thousand, two hundred twenty-six".