192202023131221 has 4 divisors (see below), whose sum is σ = 192204987035500. Its totient is φ = 192199059226944.

The previous prime is 192202023131213. The next prime is 192202023131227. The reversal of 192202023131221 is 122131320202291.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81310887735025 + 110891135396196 = 9017255^2 + 10530486^2 .

It is a cyclic number.

It is not a de Polignac number, because 192202023131221 - 2³ = 192202023131213 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 (192202023131227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1481854866 + ... + 1481984563.

It is an arithmetic number, because the mean of its divisors is an integer number (48051246758875).

Almost surely, 2^{192202023131221} is an apocalyptic number.

It is an amenable number.

192202023131221 is a deficient number, since it is larger than the sum of its proper divisors (2963904279).

192202023131221 is an equidigital number, since it uses as much as digits as its factorization.

192202023131221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963904278.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 192202023131221 in words is "one hundred ninety-two trillion, two hundred two billion, twenty-three million, one hundred thirty-one thousand, two hundred twenty-one".