122321120020 has 48 divisors (see below), whose sum is σ = 280947139200. Its totient is φ = 44366030720.

The previous prime is 122321120003. The next prime is 122321120063. The reversal of 122321120020 is 20021123221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122321119976 and 122321120003.

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, 629080 + ... + 800239.

It is an arithmetic number, because the mean of its divisors is an integer number (5853065400).

Almost surely, 2^122321120020 is an apocalyptic number.

122321120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122321120020 is an abundant number, since it is smaller than the sum of its proper divisors (158626019180).

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

122321120020 is a wasteful number, since it uses less digits than its factorization.

122321120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429728 (or 1429726 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 122321120020 its reverse (20021123221), we get a palindrome (142342243241).

The spelling of 122321120020 in words is "one hundred twenty-two billion, three hundred twenty-one million, one hundred twenty thousand, twenty".