122200122100 has 36 divisors (see below), whose sum is σ = 303056304544. Its totient is φ = 41897184480.

The previous prime is 122200122061. The next prime is 122200122133. The reversal of 122200122100 is 1221002221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87285102 + ... + 87286501.

Almost surely, 2^122200122100 is an apocalyptic number.

122200122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122200122100 is an abundant number, since it is smaller than the sum of its proper divisors (180856182444).

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

122200122100 is a wasteful number, since it uses less digits than its factorization.

122200122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174571624 (or 174571617 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122200122100 its reverse (1221002221), we get a palindrome (123421124321).

The spelling of 122200122100 in words is "one hundred twenty-two billion, two hundred million, one hundred twenty-two thousand, one hundred".