1222513235 has 8 divisors (see below), whose sum is σ = 1467966240. Its totient is φ = 977377024.

The previous prime is 1222513223. The next prime is 1222513291. The reversal of 1222513235 is 5323152221.

It is a happy number.

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-1222513235 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70622 + ... + 86211.

It is an arithmetic number, because the mean of its divisors is an integer number (183495780).

Almost surely, 2^1222513235 is an apocalyptic number.

1222513235 is a deficient number, since it is larger than the sum of its proper divisors (245453005).

1222513235 is a wasteful number, since it uses less digits than its factorization.

1222513235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158397.

The product of its digits is 3600, while the sum is 26.

The square root of 1222513235 is about 34964.4567382363. The cubic root of 1222513235 is about 1069.2629608533.

Adding to 1222513235 its reverse (5323152221), we get a palindrome (6545665456).

The spelling of 1222513235 in words is "one billion, two hundred twenty-two million, five hundred thirteen thousand, two hundred thirty-five".