79122222144 has 112 divisors (see below), whose sum is σ = 265833961600. Its totient is φ = 22606345728.

The previous prime is 79122222143. The next prime is 79122222203. The reversal of 79122222144 is 44122222197.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 79122222099 and 79122222108.

It is not an unprimeable number, because it can be changed into a prime (79122222143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3258499 + ... + 3282690.

Almost surely, 2^79122222144 is an apocalyptic number.

It is an amenable number.

79122222144 is an abundant number, since it is smaller than the sum of its proper divisors (186711739456).

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

79122222144 is a wasteful number, since it uses less digits than its factorization.

79122222144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6541217 (or 6541201 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The spelling of 79122222144 in words is "seventy-nine billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred forty-four".