200121101101122 has 16 divisors (see below), whose sum is σ = 421307581265760. Its totient is φ = 63196137189792.

The previous prime is 200121101101109. The next prime is 200121101101127. The reversal of 200121101101122 is 221101101121002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (200121101101127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 877724127523 + ... + 877724127750.

It is an arithmetic number, because the mean of its divisors is an integer number (26331723829110).

Almost surely, 2^{200121101101122} is an apocalyptic number.

200121101101122 is an abundant number, since it is smaller than the sum of its proper divisors (221186480164638).

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

200121101101122 is a wasteful number, since it uses less digits than its factorization.

200121101101122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755448255297.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 200121101101122 its reverse (221101101121002), we get a palindrome (421222202222124).

The spelling of 200121101101122 in words is "two hundred trillion, one hundred twenty-one billion, one hundred one million, one hundred one thousand, one hundred twenty-two".