1222252231 has 2 divisors, whose sum is σ = 1222252232. Its totient is φ = 1222252230.

The previous prime is 1222252153. The next prime is 1222252243. The reversal of 1222252231 is 1322522221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222252231 - 2⁷ = 1222252103 is a prime.

It is a super-2 number, since 2×1222252231² = 2987801032368954722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222252331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611126115 + 611126116.

It is an arithmetic number, because the mean of its divisors is an integer number (611126116).

Almost surely, 2^1222252231 is an apocalyptic number.

1222252231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222252231 is an equidigital number, since it uses as much as digits as its factorization.

1222252231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 22.

The square root of 1222252231 is about 34960.7241200751. The cubic root of 1222252231 is about 1069.1868603074.

Adding to 1222252231 its reverse (1322522221), we get a palindrome (2544774452).

The spelling of 1222252231 in words is "one billion, two hundred twenty-two million, two hundred fifty-two thousand, two hundred thirty-one".