122100212200120 has 64 divisors (see below), whose sum is σ = 342514880985600. Its totient is φ = 38057208996480.

The previous prime is 122100212200063. The next prime is 122100212200139. The reversal of 122100212200120 is 21002212001221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122100212200094 and 122100212200103.

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, 19821459940 + ... + 19821466099.

It is an arithmetic number, because the mean of its divisors is an integer number (5351795015400).

Almost surely, 2^{122100212200120} is an apocalyptic number.

122100212200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122100212200120 is an abundant number, since it is smaller than the sum of its proper divisors (220414668785480).

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

122100212200120 is a wasteful number, since it uses less digits than its factorization.

122100212200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39642926068 (or 39642926064 counting only the distinct ones).

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

Adding to 122100212200120 its reverse (21002212001221), we get a palindrome (143102424201341).

The spelling of 122100212200120 in words is "one hundred twenty-two trillion, one hundred billion, two hundred twelve million, two hundred thousand, one hundred twenty".