122221200120 has 64 divisors (see below), whose sum is σ = 388232053920. Its totient is φ = 30675124224.

The previous prime is 122221200109. The next prime is 122221200163. The reversal of 122221200120 is 21002122221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 122221200120.

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, 29954137 + ... + 29958216.

Almost surely, 2^122221200120 is an apocalyptic number.

122221200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122221200120 is an abundant number, since it is smaller than the sum of its proper divisors (266010853800).

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

122221200120 is a wasteful number, since it uses less digits than its factorization.

122221200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59912384 (or 59912380 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122221200120 its reverse (21002122221), we get a palindrome (143223322341).

The spelling of 122221200120 in words is "one hundred twenty-two billion, two hundred twenty-one million, two hundred thousand, one hundred twenty".