1222512253 has 8 divisors (see below), whose sum is σ = 1260649728. Its totient is φ = 1184880144.

The previous prime is 1222512223. The next prime is 1222512271. The reversal of 1222512253 is 3522152221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222512253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222512223) 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 in 7 ways as a sum of consecutive naturals, for example, 121426 + ... + 131107.

It is an arithmetic number, because the mean of its divisors is an integer number (157581216).

Almost surely, 2^1222512253 is an apocalyptic number.

It is an amenable number.

1222512253 is a deficient number, since it is larger than the sum of its proper divisors (38137475).

1222512253 is a wasteful number, since it uses less digits than its factorization.

1222512253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252683.

The product of its digits is 2400, while the sum is 25.

The square root of 1222512253 is about 34964.4426954013. The cubic root of 1222512253 is about 1069.2626745533.

Adding to 1222512253 its reverse (3522152221), we get a palindrome (4744664474).

The spelling of 1222512253 in words is "one billion, two hundred twenty-two million, five hundred twelve thousand, two hundred fifty-three".