111228899992255 has 4 divisors (see below), whose sum is σ = 133474679990712. Its totient is φ = 88983119993800.

The previous prime is 111228899992187. The next prime is 111228899992319. The reversal of 111228899992255 is 552299998822111.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 111228899992255 - 2⁷ = 111228899992127 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11122889999221 + ... + 11122889999230.

It is an arithmetic number, because the mean of its divisors is an integer number (33368669997678).

Almost surely, 2^{111228899992255} is an apocalyptic number.

111228899992255 is a deficient number, since it is larger than the sum of its proper divisors (22245779998457).

111228899992255 is an equidigital number, since it uses as much as digits as its factorization.

111228899992255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22245779998456.

The product of its digits is 167961600, while the sum is 73.

The spelling of 111228899992255 in words is "one hundred eleven trillion, two hundred twenty-eight billion, eight hundred ninety-nine million, nine hundred ninety-two thousand, two hundred fifty-five".