202201220021221 has 8 divisors (see below), whose sum is σ = 223403905497024. Its totient is φ = 182032811885760.

The previous prime is 202201220021209. The next prime is 202201220021233. The reversal of 202201220021221 is 122120022102202.

It is an interprime number because it is at equal distance from previous prime (202201220021209) and next prime (202201220021233).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202201220021221 - 2²⁵ = 202201186466789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202201220021201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258569334675 + ... + 258569335456.

It is an arithmetic number, because the mean of its divisors is an integer number (27925488187128).

Almost surely, 2^{202201220021221} is an apocalyptic number.

It is an amenable number.

202201220021221 is a deficient number, since it is larger than the sum of its proper divisors (21202685475803).

202201220021221 is a wasteful number, since it uses less digits than its factorization.

202201220021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517138670171.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202201220021221 its reverse (122120022102202), we get a palindrome (324321242123423).

The spelling of 202201220021221 in words is "two hundred two trillion, two hundred one billion, two hundred twenty million, twenty-one thousand, two hundred twenty-one".