202100200121 has 8 divisors (see below), whose sum is σ = 203173622784. Its totient is φ = 201026937280.

The previous prime is 202100200091. The next prime is 202100200123. The reversal of 202100200121 is 121002001202.

It is a happy number.

202100200121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202100200121 - 2²² = 202096005817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202100200123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3181745 + ... + 3244641.

It is an arithmetic number, because the mean of its divisors is an integer number (25396702848).

Almost surely, 2^202100200121 is an apocalyptic number.

It is an amenable number.

202100200121 is a deficient number, since it is larger than the sum of its proper divisors (1073422663).

202100200121 is a wasteful number, since it uses less digits than its factorization.

202100200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79911.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202100200121 its reverse (121002001202), we get a palindrome (323102201323).

The spelling of 202100200121 in words is "two hundred two billion, one hundred million, two hundred thousand, one hundred twenty-one".