122021375660 has 48 divisors (see below), whose sum is σ = 271346894784. Its totient is φ = 45932587008.

The previous prime is 122021375639. The next prime is 122021375687. The reversal of 122021375660 is 66573120221.

It is a super-2 number, since 2×122021375660² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122021375660.

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, 5839952 + ... + 5860808.

It is an arithmetic number, because the mean of its divisors is an integer number (5653060308).

Almost surely, 2^122021375660 is an apocalyptic number.

122021375660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122021375660 is an abundant number, since it is smaller than the sum of its proper divisors (149325519124).

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

122021375660 is a wasteful number, since it uses less digits than its factorization.

122021375660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38090 (or 38088 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

Adding to 122021375660 its reverse (66573120221), we get a palindrome (188594495881).

The spelling of 122021375660 in words is "one hundred twenty-two billion, twenty-one million, three hundred seventy-five thousand, six hundred sixty".