442221545122297 has 2 divisors, whose sum is σ = 442221545122298. Its totient is φ = 442221545122296.

The previous prime is 442221545122283. The next prime is 442221545122393. The reversal of 442221545122297 is 792221545122244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264090320732736 + 178131224389561 = 16250856^2 + 13346581^2 .

It is a cyclic number.

It is not a de Polignac number, because 442221545122297 - 2⁴⁷ = 301484056766969 is a prime.

It is not a weakly prime, because it can be changed into another prime (442221545162297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221110772561148 + 221110772561149.

It is an arithmetic number, because the mean of its divisors is an integer number (221110772561149).

Almost surely, 2^{442221545122297} is an apocalyptic number.

It is an amenable number.

442221545122297 is a deficient number, since it is larger than the sum of its proper divisors (1).

442221545122297 is an equidigital number, since it uses as much as digits as its factorization.

442221545122297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6451200, while the sum is 52.

The spelling of 442221545122297 in words is "four hundred forty-two trillion, two hundred twenty-one billion, five hundred forty-five million, one hundred twenty-two thousand, two hundred ninety-seven".