1222452515 has 16 divisors (see below), whose sum is σ = 1554547680. Its totient is φ = 921204480.

The previous prime is 1222452503. The next prime is 1222452523. The reversal of 1222452515 is 5152542221.

It is a happy number.

It is not a de Polignac number, because 1222452515 - 2¹⁰ = 1222451491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96869 + ... + 108758.

It is an arithmetic number, because the mean of its divisors is an integer number (97159230).

Almost surely, 2^1222452515 is an apocalyptic number.

1222452515 is a deficient number, since it is larger than the sum of its proper divisors (332095165).

1222452515 is a wasteful number, since it uses less digits than its factorization.

1222452515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205702.

The product of its digits is 8000, while the sum is 29.

The square root of 1222452515 is about 34963.5884170947. The cubic root of 1222452515 is about 1069.2452577806.

Adding to 1222452515 its reverse (5152542221), we get a palindrome (6374994736).

The spelling of 1222452515 in words is "one billion, two hundred twenty-two million, four hundred fifty-two thousand, five hundred fifteen".