122130023100 has 144 divisors (see below), whose sum is σ = 356651506176. Its totient is φ = 32266080000.

The previous prime is 122130023089. The next prime is 122130023117. The reversal of 122130023100 is 1320031221.

It is a super-2 number, since 2×122130023100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 122130023100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17980705 + ... + 17987495.

Almost surely, 2^122130023100 is an apocalyptic number.

122130023100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122130023100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178325753088).

122130023100 is an abundant number, since it is smaller than the sum of its proper divisors (234521483076).

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

122130023100 is a wasteful number, since it uses less digits than its factorization.

122130023100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7356 (or 7349 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 122130023100 its reverse (1320031221), we get a palindrome (123450054321).

The spelling of 122130023100 in words is "one hundred twenty-two billion, one hundred thirty million, twenty-three thousand, one hundred".