2204221457 has 2 divisors, whose sum is σ = 2204221458. Its totient is φ = 2204221456.

The previous prime is 2204221441. The next prime is 2204221469. The reversal of 2204221457 is 7541224022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2025090001 + 179131456 = 45001^2 + 13384^2 .

It is a cyclic number.

It is not a de Polignac number, because 2204221457 - 2⁴ = 2204221441 is a prime.

It is not a weakly prime, because it can be changed into another prime (2204221157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102110728 + 1102110729.

It is an arithmetic number, because the mean of its divisors is an integer number (1102110729).

Almost surely, 2^2204221457 is an apocalyptic number.

It is an amenable number.

2204221457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2204221457 is an equidigital number, since it uses as much as digits as its factorization.

2204221457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 2204221457 is about 46949.1369143246. The cubic root of 2204221457 is about 1301.4227927410.

Adding to 2204221457 its reverse (7541224022), we get a palindrome (9745445479).

The spelling of 2204221457 in words is "two billion, two hundred four million, two hundred twenty-one thousand, four hundred fifty-seven".