342221131997 has 2 divisors, whose sum is σ = 342221131998. Its totient is φ = 342221131996.

The previous prime is 342221131909. The next prime is 342221132047. The reversal of 342221131997 is 799131122243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 335340595396 + 6880536601 = 579086^2 + 82949^2 .

It is a cyclic number.

It is not a de Polignac number, because 342221131997 - 2²⁴ = 342204354781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342221121997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171110565998 + 171110565999.

It is an arithmetic number, because the mean of its divisors is an integer number (171110565999).

Almost surely, 2^342221131997 is an apocalyptic number.

It is an amenable number.

342221131997 is a deficient number, since it is larger than the sum of its proper divisors (1).

342221131997 is an equidigital number, since it uses as much as digits as its factorization.

342221131997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The spelling of 342221131997 in words is "three hundred forty-two billion, two hundred twenty-one million, one hundred thirty-one thousand, nine hundred ninety-seven".