122100120220 has 24 divisors (see below), whose sum is σ = 276134118624. Its totient is φ = 45083121216.

The previous prime is 122100120199. The next prime is 122100120227. The reversal of 122100120220 is 22021001221.

It is a happy number.

122100120220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 122100120220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100120227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234807664 + ... + 234808183.

It is an arithmetic number, because the mean of its divisors is an integer number (11505588276).

Almost surely, 2^122100120220 is an apocalyptic number.

122100120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122100120220 is an abundant number, since it is smaller than the sum of its proper divisors (154033998404).

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

122100120220 is a wasteful number, since it uses less digits than its factorization.

122100120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469615869 (or 469615867 counting only the distinct ones).

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

Adding to 122100120220 its reverse (22021001221), we get a palindrome (144121121441).

The spelling of 122100120220 in words is "one hundred twenty-two billion, one hundred million, one hundred twenty thousand, two hundred twenty".