2221522297 has 2 divisors, whose sum is σ = 2221522298. Its totient is φ = 2221522296.

The previous prime is 2221522271. The next prime is 2221522301. The reversal of 2221522297 is 7922251222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1940490601 + 281031696 = 44051^2 + 16764^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221522297 is a prime.

It is a super-2 number, since 2×2221522297² = 9870322632136312418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2221522097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110761148 + 1110761149.

It is an arithmetic number, because the mean of its divisors is an integer number (1110761149).

Almost surely, 2^2221522297 is an apocalyptic number.

It is an amenable number.

2221522297 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221522297 is an equidigital number, since it uses as much as digits as its factorization.

2221522297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 2221522297 is about 47133.0276663827. The cubic root of 2221522297 is about 1304.8188602729.

The spelling of 2221522297 in words is "two billion, two hundred twenty-one million, five hundred twenty-two thousand, two hundred ninety-seven".