202200122202221 has 24 divisors (see below), whose sum is σ = 239774546790240. Its totient is φ = 169377040847520.

The previous prime is 202200122202181. The next prime is 202200122202257. The reversal of 202200122202221 is 122202221002202.

It is a de Polignac number, because none of the positive numbers 2^k-202200122202221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202200122202193 and 202200122202202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202200122292221) 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, 113274491 + ... + 115045688.

It is an arithmetic number, because the mean of its divisors is an integer number (9990606116260).

Almost surely, 2^{202200122202221} is an apocalyptic number.

It is an amenable number.

202200122202221 is a deficient number, since it is larger than the sum of its proper divisors (37574424588019).

202200122202221 is a wasteful number, since it uses less digits than its factorization.

202200122202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228320777 (or 228320766 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 202200122202221 its reverse (122202221002202), we get a palindrome (324402343204423).

The spelling of 202200122202221 in words is "two hundred two trillion, two hundred billion, one hundred twenty-two million, two hundred two thousand, two hundred twenty-one".