200202220122021 has 24 divisors (see below), whose sum is σ = 311435498550176. Its totient is φ = 123197480284320.

The previous prime is 200202220122017. The next prime is 200202220122043. The reversal of 200202220122021 is 120221022202002.

200202220122021 is a `hidden beast` number, since 2 + 0 + 0 + 202 + 220 + 1 + 220 + 21 = 666.

It is not a de Polignac number, because 200202220122021 - 2² = 200202220122017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 200202220121985 and 200202220122003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200202220124021) 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, 23258275 + ... + 30681456.

Almost surely, 2^{200202220122021} is an apocalyptic number.

It is an amenable number.

200202220122021 is a deficient number, since it is larger than the sum of its proper divisors (111233278428155).

200202220122021 is a wasteful number, since it uses less digits than its factorization.

200202220122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53971473 (or 53971470 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 200202220122021 its reverse (120221022202002), we get a palindrome (320423242324023).

The spelling of 200202220122021 in words is "two hundred trillion, two hundred two billion, two hundred twenty million, one hundred twenty-two thousand, twenty-one".