202122001100121 has 32 divisors (see below), whose sum is σ = 276216869671680. Its totient is φ = 131391096883200.

The previous prime is 202122001100087. The next prime is 202122001100137. The reversal of 202122001100121 is 121001100221202.

It is not a de Polignac number, because 202122001100121 - 2¹⁰ = 202122001099097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202122001100121.

It is not an unprimeable number, because it can be changed into a prime (202122001100171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3645685761 + ... + 3645741201.

It is an arithmetic number, because the mean of its divisors is an integer number (8631777177240).

Almost surely, 2^{202122001100121} is an apocalyptic number.

It is an amenable number.

202122001100121 is a deficient number, since it is larger than the sum of its proper divisors (74094868571559).

202122001100121 is a wasteful number, since it uses less digits than its factorization.

202122001100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70817.

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

Adding to 202122001100121 its reverse (121001100221202), we get a palindrome (323123101321323).

The spelling of 202122001100121 in words is "two hundred two trillion, one hundred twenty-two billion, one million, one hundred thousand, one hundred twenty-one".