122172744199 has 4 divisors (see below), whose sum is σ = 133279357320. Its totient is φ = 111066131080.

The previous prime is 122172744191. The next prime is 122172744203. The reversal of 122172744199 is 991447271221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122172744199 - 2³ = 122172744191 is a prime.

It is a super-2 number, since 2×122172744199² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122172744191) 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 3 ways as a sum of consecutive naturals, for example, 5553306544 + ... + 5553306565.

It is an arithmetic number, because the mean of its divisors is an integer number (33319839330).

Almost surely, 2^122172744199 is an apocalyptic number.

122172744199 is a deficient number, since it is larger than the sum of its proper divisors (11106613121).

122172744199 is a wasteful number, since it uses less digits than its factorization.

122172744199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11106613120.

The product of its digits is 508032, while the sum is 49.

The spelling of 122172744199 in words is "one hundred twenty-two billion, one hundred seventy-two million, seven hundred forty-four thousand, one hundred ninety-nine".