122130100100 has 18 divisors (see below), whose sum is σ = 265022317434. Its totient is φ = 48852040000.

The previous prime is 122130100067. The next prime is 122130100201. The reversal of 122130100100 is 1001031221.

It can be written as a sum of positive squares in 3 ways, for example, as 27295665796 + 94834434304 = 165214^2 + 307952^2 .

It is a super-2 number, since 2×122130100100² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 610650401 + ... + 610650600.

Almost surely, 2^122130100100 is an apocalyptic number.

122130100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122130100100 is an abundant number, since it is smaller than the sum of its proper divisors (142892217334).

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

122130100100 is a wasteful number, since it uses less digits than its factorization.

122130100100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221301015 (or 1221301008 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 122130100100 its reverse (1001031221), we get a palindrome (123131131321).

The spelling of 122130100100 in words is "one hundred twenty-two billion, one hundred thirty million, one hundred thousand, one hundred".