122012200020 has 48 divisors (see below), whose sum is σ = 352654622208. Its totient is φ = 31487018880.

The previous prime is 122012200019. The next prime is 122012200027. The reversal of 122012200020 is 20002210221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 122012199969 and 122012200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012200027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32797119 + ... + 32800838.

It is an arithmetic number, because the mean of its divisors is an integer number (7346971296).

Almost surely, 2^122012200020 is an apocalyptic number.

122012200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122012200020 is an abundant number, since it is smaller than the sum of its proper divisors (230642422188).

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

122012200020 is a wasteful number, since it uses less digits than its factorization.

122012200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65598000 (or 65597998 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 122012200020 its reverse (20002210221), we get a palindrome (142014410241).

The spelling of 122012200020 in words is "one hundred twenty-two billion, twelve million, two hundred thousand, twenty".