1222013115 has 64 divisors (see below), whose sum is σ = 2289530880. Its totient is φ = 617189760.

The previous prime is 1222013059. The next prime is 1222013137. The reversal of 1222013115 is 5113102221.

1222013115 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1222013115 - 2⁸ = 1222012859 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 317905 + ... + 321725.

It is an arithmetic number, because the mean of its divisors is an integer number (35773920).

Almost surely, 2^1222013115 is an apocalyptic number.

1222013115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1222013115 is a deficient number, since it is larger than the sum of its proper divisors (1067517765).

1222013115 is a wasteful number, since it uses less digits than its factorization.

1222013115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3961 (or 3955 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1222013115 is about 34957.3041723758. The cubic root of 1222013115 is about 1069.1171321033.

Adding to 1222013115 its reverse (5113102221), we get a palindrome (6335115336).

It can be divided in two parts, 122201 and 3115, that added together give a square (125316 = 354²).

The spelling of 1222013115 in words is "one billion, two hundred twenty-two million, thirteen thousand, one hundred fifteen".