202122130660 has 24 divisors (see below), whose sum is σ = 425441310336. Its totient is φ = 80661264480.

The previous prime is 202122130633. The next prime is 202122130667. The reversal of 202122130660 is 66031221202.

It is a super-2 number, since 2×202122130660² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202122130667) 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, 11715402 + ... + 11732641.

It is an arithmetic number, because the mean of its divisors is an integer number (17726721264).

Almost surely, 2^202122130660 is an apocalyptic number.

202122130660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202122130660 is an abundant number, since it is smaller than the sum of its proper divisors (223319179676).

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

202122130660 is a wasteful number, since it uses less digits than its factorization.

202122130660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23448483 (or 23448481 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 202122130660 its reverse (66031221202), we get a palindrome (268153351862).

The spelling of 202122130660 in words is "two hundred two billion, one hundred twenty-two million, one hundred thirty thousand, six hundred sixty".