122200021212100 has 72 divisors (see below), whose sum is σ = 295419361716360. Its totient is φ = 43564145479680.

The previous prime is 122200021212097. The next prime is 122200021212133. The reversal of 122200021212100 is 1212120002221.

It is a happy number.

122200021212100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 46191161702464 + 76008859509636 = 6796408^2 + 8718306^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1620652237 + ... + 1620727636.

It is an arithmetic number, because the mean of its divisors is an integer number (4103046690505).

Almost surely, 2^{122200021212100} is an apocalyptic number.

122200021212100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122200021212100 is an abundant number, since it is smaller than the sum of its proper divisors (173219340504260).

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

122200021212100 is a wasteful number, since it uses less digits than its factorization.

122200021212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241379929 (or 3241379922 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122200021212100 its reverse (1212120002221), we get a palindrome (123412141214321).

The spelling of 122200021212100 in words is "one hundred twenty-two trillion, two hundred billion, twenty-one million, two hundred twelve thousand, one hundred".