1222401253 has 2 divisors, whose sum is σ = 1222401254. Its totient is φ = 1222401252.

The previous prime is 1222401223. The next prime is 1222401259. The reversal of 1222401253 is 3521042221.

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., 657768609 + 564632644 = 25647^2 + 23762^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222401253 - 2⁵ = 1222401221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222401259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611200626 + 611200627.

It is an arithmetic number, because the mean of its divisors is an integer number (611200627).

Almost surely, 2^1222401253 is an apocalyptic number.

It is an amenable number.

1222401253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222401253 is an equidigital number, since it uses as much as digits as its factorization.

1222401253 is an evil number, because the sum of its binary digits is even.

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

The square root of 1222401253 is about 34962.8553324811. The cubic root of 1222401253 is about 1069.2303117558.

Adding to 1222401253 its reverse (3521042221), we get a palindrome (4743443474).

The spelling of 1222401253 in words is "one billion, two hundred twenty-two million, four hundred one thousand, two hundred fifty-three".