122020323645 has 64 divisors (see below), whose sum is σ = 220312350720. Its totient is φ = 57147897600.

The previous prime is 122020323613. The next prime is 122020323671. The reversal of 122020323645 is 546323020221.

It is not a de Polignac number, because 122020323645 - 2⁵ = 122020323613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 776700 + ... + 920490.

It is an arithmetic number, because the mean of its divisors is an integer number (3442380480).

Almost surely, 2^122020323645 is an apocalyptic number.

122020323645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122020323645 is a deficient number, since it is larger than the sum of its proper divisors (98292027075).

122020323645 is a wasteful number, since it uses less digits than its factorization.

122020323645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143986.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 122020323645 its reverse (546323020221), we get a palindrome (668343343866).

The spelling of 122020323645 in words is "one hundred twenty-two billion, twenty million, three hundred twenty-three thousand, six hundred forty-five".