222321097 has 2 divisors, whose sum is σ = 222321098. Its totient is φ = 222321096.

The previous prime is 222321041. The next prime is 222321107. The reversal of 222321097 is 790123222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210134016 + 12187081 = 14496^2 + 3491^2 .

It is a cyclic number.

It is not a de Polignac number, because 222321097 - 2²³ = 213932489 is a prime.

It is not a weakly prime, because it can be changed into another prime (222321007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111160548 + 111160549.

It is an arithmetic number, because the mean of its divisors is an integer number (111160549).

Almost surely, 2^222321097 is an apocalyptic number.

It is an amenable number.

222321097 is a deficient number, since it is larger than the sum of its proper divisors (1).

222321097 is an equidigital number, since it uses as much as digits as its factorization.

222321097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 222321097 is about 14910.4358420537. The cubic root of 222321097 is about 605.7966846546.

The spelling of 222321097 in words is "two hundred twenty-two million, three hundred twenty-one thousand, ninety-seven".