1122515215 has 8 divisors (see below), whose sum is σ = 1378344528. Its totient is φ = 877128000.

The previous prime is 1122515203. The next prime is 1122515237. The reversal of 1122515215 is 5125152211.

It is a happy number.

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

It is not a de Polignac number, because 1122515215 - 2¹⁵ = 1122482447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1122515215.

It is a congruent number.

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, 2610286 + ... + 2610715.

It is an arithmetic number, because the mean of its divisors is an integer number (172293066).

Almost surely, 2^1122515215 is an apocalyptic number.

1122515215 is a deficient number, since it is larger than the sum of its proper divisors (255829313).

1122515215 is an equidigital number, since it uses as much as digits as its factorization.

1122515215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5221049.

The product of its digits is 1000, while the sum is 25.

The square root of 1122515215 is about 33503.9581989949. The cubic root of 1122515215 is about 1039.2756343376.

Adding to 1122515215 its reverse (5125152211), we get a palindrome (6247667426).

The spelling of 1122515215 in words is "one billion, one hundred twenty-two million, five hundred fifteen thousand, two hundred fifteen".