202002322221 has 24 divisors (see below), whose sum is σ = 333974883840. Its totient is φ = 115253106336.

The previous prime is 202002322201. The next prime is 202002322229. The reversal of 202002322221 is 122223200202.

It is not a de Polignac number, because 202002322221 - 2¹⁰ = 202002321197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202002322194 and 202002322203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202002322229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2413981 + ... + 2496258.

It is an arithmetic number, because the mean of its divisors is an integer number (13915620160).

Almost surely, 2^202002322221 is an apocalyptic number.

202002322221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

202002322221 is a deficient number, since it is larger than the sum of its proper divisors (131972561619).

202002322221 is a wasteful number, since it uses less digits than its factorization.

202002322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4910905 (or 4910902 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 202002322221 its reverse (122223200202), we get a palindrome (324225522423).

The spelling of 202002322221 in words is "two hundred two billion, two million, three hundred twenty-two thousand, two hundred twenty-one".