202000110221 has 24 divisors (see below), whose sum is σ = 253705921560. Its totient is φ = 159413208192.

The previous prime is 202000110209. The next prime is 202000110241. The reversal of 202000110221 is 122011000202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16368387721 + 185631722500 = 127939^2 + 430850^2 .

It is not a de Polignac number, because 202000110221 - 2¹⁸ = 201999848077 is a prime.

It is a super-2 number, since 2×202000110221² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202000110241) 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, 159806 + ... + 655391.

It is an arithmetic number, because the mean of its divisors is an integer number (10571080065).

Almost surely, 2^202000110221 is an apocalyptic number.

It is an amenable number.

202000110221 is a deficient number, since it is larger than the sum of its proper divisors (51705811339).

202000110221 is a wasteful number, since it uses less digits than its factorization.

202000110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815613 (or 815606 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202000110221 its reverse (122011000202), we get a palindrome (324011110423).

The spelling of 202000110221 in words is "two hundred two billion, one hundred ten thousand, two hundred twenty-one".