202000102012221 has 4 divisors (see below), whose sum is σ = 269333469349632. Its totient is φ = 134666734674812.

The previous prime is 202000102012213. The next prime is 202000102012301. The reversal of 202000102012221 is 122210201000202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 202000102012221 - 2³ = 202000102012213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202000102012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202000102012201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33666683668701 + ... + 33666683668706.

It is an arithmetic number, because the mean of its divisors is an integer number (67333367337408).

Almost surely, 2^{202000102012221} is an apocalyptic number.

It is an amenable number.

202000102012221 is a deficient number, since it is larger than the sum of its proper divisors (67333367337411).

202000102012221 is an equidigital number, since it uses as much as digits as its factorization.

202000102012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67333367337410.

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

Adding to 202000102012221 its reverse (122210201000202), we get a palindrome (324210303012423).

The spelling of 202000102012221 in words is "two hundred two trillion, one hundred two million, twelve thousand, two hundred twenty-one".