202000020122121 has 32 divisors (see below), whose sum is σ = 302665698461952. Its totient is φ = 118901662218240.

The previous prime is 202000020122107. The next prime is 202000020122171. The reversal of 202000020122121 is 121221020000202.

It is not a de Polignac number, because 202000020122121 - 2⁹ = 202000020121609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202000020122121.

It is not an unprimeable number, because it can be changed into a prime (202000020122171) 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, 80062741 + ... + 82547213.

It is an arithmetic number, because the mean of its divisors is an integer number (9458303076936).

Almost surely, 2^{202000020122121} is an apocalyptic number.

It is an amenable number.

202000020122121 is a deficient number, since it is larger than the sum of its proper divisors (100665678339831).

202000020122121 is a wasteful number, since it uses less digits than its factorization.

202000020122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575153.

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

Adding to 202000020122121 its reverse (121221020000202), we get a palindrome (323221040122323).

The spelling of 202000020122121 in words is "two hundred two trillion, twenty million, one hundred twenty-two thousand, one hundred twenty-one".