121122200002200 has 96 divisors (see below), whose sum is σ = 375513411503760. Its totient is φ = 32296277721600.

The previous prime is 121122200002169. The next prime is 121122200002249. The reversal of 121122200002200 is 2200002221121.

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 121122200002200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2776759 + ... + 15809958.

Almost surely, 2^{121122200002200} is an apocalyptic number.

121122200002200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121122200002200 is an abundant number, since it is smaller than the sum of its proper divisors (254391211501560).

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

121122200002200 is a wasteful number, since it uses less digits than its factorization.

121122200002200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18597597 (or 18597588 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 121122200002200 its reverse (2200002221121), we get a palindrome (123322202223321).

The spelling of 121122200002200 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, two hundred million, two thousand, two hundred".