122209999998 has 16 divisors (see below), whose sum is σ = 245112412176. Its totient is φ = 40621264640.

The previous prime is 122209999949. The next prime is 122210000039. The reversal of 122209999998 is 899999902221.

It is a happy number.

It is a super-2 number, since 2×122209999998² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28848213 + ... + 28852448.

It is an arithmetic number, because the mean of its divisors is an integer number (15319525761).

Almost surely, 2^122209999998 is an apocalyptic number.

122209999998 is an abundant number, since it is smaller than the sum of its proper divisors (122902412178).

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

122209999998 is a wasteful number, since it uses less digits than its factorization.

122209999998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57701019.

The product of its (nonzero) digits is 34012224, while the sum is 69.

The spelling of 122209999998 in words is "one hundred twenty-two billion, two hundred nine million, nine hundred ninety-nine thousand, nine hundred ninety-eight".