222120097 has 2 divisors, whose sum is σ = 222120098. Its totient is φ = 222120096.

The previous prime is 222120071. The next prime is 222120133. The reversal of 222120097 is 790021222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145540096 + 76580001 = 12064^2 + 8751^2 .

It is a cyclic number.

It is not a de Polignac number, because 222120097 - 2⁷ = 222119969 is a prime.

It is not a weakly prime, because it can be changed into another prime (222120047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111060048 + 111060049.

It is an arithmetic number, because the mean of its divisors is an integer number (111060049).

Almost surely, 2^222120097 is an apocalyptic number.

It is an amenable number.

222120097 is a deficient number, since it is larger than the sum of its proper divisors (1).

222120097 is an equidigital number, since it uses as much as digits as its factorization.

222120097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 222120097 is about 14903.6940722762. The cubic root of 222120097 is about 605.6140631377.

The spelling of 222120097 in words is "two hundred twenty-two million, one hundred twenty thousand, ninety-seven".