121002112022100 has 36 divisors (see below), whose sum is σ = 350099444118144. Its totient is φ = 32267229872480.

The previous prime is 121002112022059. The next prime is 121002112022101. The reversal of 121002112022100 is 1220211200121.

It is a super-2 number, since 2×121002112022100² (a number of 29 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 121002112022100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002112022101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201670186404 + ... + 201670187003.

Almost surely, 2^{121002112022100} is an apocalyptic number.

121002112022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002112022100 is an abundant number, since it is smaller than the sum of its proper divisors (229097332096044).

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

121002112022100 is a wasteful number, since it uses less digits than its factorization.

121002112022100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403340373424 (or 403340373417 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121002112022100 its reverse (1220211200121), we get a palindrome (122222323222221).

The spelling of 121002112022100 in words is "one hundred twenty-one trillion, two billion, one hundred twelve million, twenty-two thousand, one hundred".