202200020221221 has 48 divisors (see below), whose sum is σ = 330422930405568. Its totient is φ = 122543967657600.

The previous prime is 202200020221181. The next prime is 202200020221247. The reversal of 202200020221221 is 122122020002202.

202200020221221 is a `hidden beast` number, since 2 + 0 + 2 + 200 + 0 + 20 + 221 + 221 = 666.

It is not a de Polignac number, because 202200020221221 - 2³⁴ = 202182840352037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202200020221194 and 202200020221203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202200020221261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 241801851 + ... + 242636631.

It is an arithmetic number, because the mean of its divisors is an integer number (6883811050116).

Almost surely, 2^{202200020221221} is an apocalyptic number.

It is an amenable number.

202200020221221 is a deficient number, since it is larger than the sum of its proper divisors (128222910184347).

202200020221221 is an equidigital number, since it uses as much as digits as its factorization.

202200020221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925424 (or 925412 counting only the distinct ones).

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

Adding to 202200020221221 its reverse (122122020002202), we get a palindrome (324322040223423).

The spelling of 202200020221221 in words is "two hundred two trillion, two hundred billion, twenty million, two hundred twenty-one thousand, two hundred twenty-one".