202200222001221 has 12 divisors (see below), whose sum is σ = 301488503056000. Its totient is φ = 130451756129640.

The previous prime is 202200222001207. The next prime is 202200222001229. The reversal of 202200222001221 is 122100222002202.

202200222001221 is a `hidden beast` number, since 2 + 0 + 220 + 0 + 2 + 220 + 0 + 1 + 221 = 666.

It is not a de Polignac number, because 202200222001221 - 2⁷ = 202200222001093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202200222001194 and 202200222001203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202200222001229) 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, 362365988971 + ... + 362365989528.

Almost surely, 2^{202200222001221} is an apocalyptic number.

It is an amenable number.

202200222001221 is a deficient number, since it is larger than the sum of its proper divisors (99288281054779).

202200222001221 is a wasteful number, since it uses less digits than its factorization.

202200222001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724731978536 (or 724731978533 counting only the distinct ones).

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

Adding to 202200222001221 its reverse (122100222002202), we get a palindrome (324300444003423).

The spelling of 202200222001221 in words is "two hundred two trillion, two hundred billion, two hundred twenty-two million, one thousand, two hundred twenty-one".