1112215155 has 16 divisors (see below), whose sum is σ = 1781502720. Its totient is φ = 592528608.

The previous prime is 1112215147. The next prime is 1112215193. The reversal of 1112215155 is 5515122111.

It is not a de Polignac number, because 1112215155 - 2³ = 1112215147 is a prime.

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, 26557 + ... + 54126.

It is an arithmetic number, because the mean of its divisors is an integer number (111343920).

Almost surely, 2^1112215155 is an apocalyptic number.

1112215155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1112215155 is a deficient number, since it is larger than the sum of its proper divisors (669287565).

1112215155 is an equidigital number, since it uses as much as digits as its factorization.

1112215155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81610.

The product of its digits is 500, while the sum is 24.

The square root of 1112215155 is about 33349.8898798782. The cubic root of 1112215155 is about 1036.0871071965.

Adding to 1112215155 its reverse (5515122111), we get a palindrome (6627337266).

The spelling of 1112215155 in words is "one billion, one hundred twelve million, two hundred fifteen thousand, one hundred fifty-five".