1222333457 has 2 divisors, whose sum is σ = 1222333458. Its totient is φ = 1222333456.

The previous prime is 1222333423. The next prime is 1222333477. The reversal of 1222333457 is 7543332221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 952092736 + 270240721 = 30856^2 + 16439^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222333457 - 2²⁰ = 1221284881 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (1222333417) 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, 611166728 + 611166729.

It is an arithmetic number, because the mean of its divisors is an integer number (611166729).

Almost surely, 2^1222333457 is an apocalyptic number.

It is an amenable number.

1222333457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222333457 is an equidigital number, since it uses as much as digits as its factorization.

1222333457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 32.

The square root of 1222333457 is about 34961.8857757988. The cubic root of 1222333457 is about 1069.2105444118.

Adding to 1222333457 its reverse (7543332221), we get a palindrome (8765665678).

The spelling of 1222333457 in words is "one billion, two hundred twenty-two million, three hundred thirty-three thousand, four hundred fifty-seven".