122100553212 has 48 divisors (see below), whose sum is σ = 310864780800. Its totient is φ = 36992623360.

The previous prime is 122100553189. The next prime is 122100553231. The reversal of 122100553212 is 212355001221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 573364 + ... + 756932.

It is an arithmetic number, because the mean of its divisors is an integer number (6476349600).

Almost surely, 2^122100553212 is an apocalyptic number.

122100553212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122100553212 is an abundant number, since it is smaller than the sum of its proper divisors (188764227588).

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

122100553212 is a wasteful number, since it uses less digits than its factorization.

122100553212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188626 (or 188624 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 122100553212 its reverse (212355001221), we get a palindrome (334455554433).

The spelling of 122100553212 in words is "one hundred twenty-two billion, one hundred million, five hundred fifty-three thousand, two hundred twelve".