202000212121001 has 32 divisors (see below), whose sum is σ = 240164723269632. Its totient is φ = 166250970046080.

The previous prime is 202000212120997. The next prime is 202000212121009. The reversal of 202000212121001 is 100121212000202.

It is a cyclic number.

It is not a de Polignac number, because 202000212121001 - 2² = 202000212120997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202000212121009) 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, 57361730 + ... + 60781316.

It is an arithmetic number, because the mean of its divisors is an integer number (7505147602176).

Almost surely, 2^{202000212121001} is an apocalyptic number.

It is an amenable number.

202000212121001 is a deficient number, since it is larger than the sum of its proper divisors (38164511148631).

202000212121001 is a wasteful number, since it uses less digits than its factorization.

202000212121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3421749.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202000212121001 its reverse (100121212000202), we get a palindrome (302121424121203).

The spelling of 202000212121001 in words is "two hundred two trillion, two hundred twelve million, one hundred twenty-one thousand, one".