202000221200121 has 16 divisors (see below), whose sum is σ = 270371950206336. Its totient is φ = 134147707102976.

The previous prime is 202000221200119. The next prime is 202000221200153. The reversal of 202000221200121 is 121002122000202.

It is a cyclic number.

It is not a de Polignac number, because 202000221200121 - 2¹ = 202000221200119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202000221200121.

It is not an unprimeable number, because it can be changed into a prime (202000221200161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8268481 + ... + 21734033.

It is an arithmetic number, because the mean of its divisors is an integer number (16898246887896).

Almost surely, 2^{202000221200121} is an apocalyptic number.

It is an amenable number.

202000221200121 is a deficient number, since it is larger than the sum of its proper divisors (68371729006215).

202000221200121 is a wasteful number, since it uses less digits than its factorization.

202000221200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13484832.

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

Adding to 202000221200121 its reverse (121002122000202), we get a palindrome (323002343200323).

The spelling of 202000221200121 in words is "two hundred two trillion, two hundred twenty-one million, two hundred thousand, one hundred twenty-one".