202202002112221 has 8 divisors (see below), whose sum is σ = 202362739396920. Its totient is φ = 202041324291072.

The previous prime is 202202002112167. The next prime is 202202002112233. The reversal of 202202002112221 is 122211200202202.

It can be written as a sum of positive squares in 4 ways, for example, as 69355400784121 + 132846601328100 = 8327989^2 + 11525910^2 .

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 202202002112221 - 2⁷ = 202202002112093 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 (202202002112261) 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, 8061076 + ... + 21665293.

It is an arithmetic number, because the mean of its divisors is an integer number (25295342424615).

Almost surely, 2^{202202002112221} is an apocalyptic number.

It is an amenable number.

202202002112221 is a deficient number, since it is larger than the sum of its proper divisors (160737284699).

202202002112221 is a wasteful number, since it uses less digits than its factorization.

202202002112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29731775.

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

Adding to 202202002112221 its reverse (122211200202202), we get a palindrome (324413202314423).

The spelling of 202202002112221 in words is "two hundred two trillion, two hundred two billion, two million, one hundred twelve thousand, two hundred twenty-one".