1112212755 has 16 divisors (see below), whose sum is σ = 1977267360. Its totient is φ = 593180064.

The previous prime is 1112212691. The next prime is 1112212763. The reversal of 1112212755 is 5572122111.

It is not a de Polignac number, because 1112212755 - 2⁶ = 1112212691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4119172 + ... + 4119441.

It is an arithmetic number, because the mean of its divisors is an integer number (123579210).

Almost surely, 2^1112212755 is an apocalyptic number.

1112212755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1112212755 is a deficient number, since it is larger than the sum of its proper divisors (865054605).

1112212755 is an equidigital number, since it uses as much as digits as its factorization.

1112212755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8238627 (or 8238621 counting only the distinct ones).

The product of its digits is 1400, while the sum is 27.

The square root of 1112212755 is about 33349.8538977309. The cubic root of 1112212755 is about 1036.0863619538.

Adding to 1112212755 its reverse (5572122111), we get a palindrome (6684334866).

The spelling of 1112212755 in words is "one billion, one hundred twelve million, two hundred twelve thousand, seven hundred fifty-five".