79122222197 has 8 divisors (see below), whose sum is σ = 81301038720. Its totient is φ = 76958804160.

The previous prime is 79122222143. The next prime is 79122222203.

79122222197 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79122222197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79122222497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3839204 + ... + 3859757.

It is an arithmetic number, because the mean of its divisors is an integer number (10162629840).

Almost surely, 2^79122222197 is an apocalyptic number.

It is an amenable number.

79122222197 is a deficient number, since it is larger than the sum of its proper divisors (2178816523).

79122222197 is a wasteful number, since it uses less digits than its factorization.

79122222197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7699243.

The product of its digits is 127008, while the sum is 44.

The spelling of 79122222197 in words is "seventy-nine billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred ninety-seven".