202002201112221 has 12 divisors (see below), whose sum is σ = 291781948374748. Its totient is φ = 134667676592064.

The previous prime is 202002201112219. The next prime is 202002201112241. The reversal of 202002201112221 is 122211102200202.

It is a happy number.

202002201112221 is a `hidden beast` number, since 2 + 0 + 200 + 220 + 11 + 12 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 142811797251321 + 59190403860900 = 11950389^2 + 7693530^2 .

It is not a de Polignac number, because 202002201112221 - 2¹ = 202002201112219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202002201112194 and 202002201112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202002201112211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35316190 + ... + 40635423.

Almost surely, 2^{202002201112221} is an apocalyptic number.

It is an amenable number.

202002201112221 is a deficient number, since it is larger than the sum of its proper divisors (89779747262527).

202002201112221 is a wasteful number, since it uses less digits than its factorization.

202002201112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76247132 (or 76247129 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202002201112221 its reverse (122211102200202), we get a palindrome (324213303312423).

The spelling of 202002201112221 in words is "two hundred two trillion, two billion, two hundred one million, one hundred twelve thousand, two hundred twenty-one".