1110155221155 has 32 divisors (see below), whose sum is σ = 1780032844800. Its totient is φ = 590822111232.

The previous prime is 1110155221121. The next prime is 1110155221177. The reversal of 1110155221155 is 5511225510111.

It is not a de Polignac number, because 1110155221155 - 2²² = 1110151026851 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22989526 + ... + 23037764.

It is an arithmetic number, because the mean of its divisors is an integer number (55626026400).

Almost surely, 2^{1110155221155} is an apocalyptic number.

1110155221155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1110155221155 is a deficient number, since it is larger than the sum of its proper divisors (669877623645).

1110155221155 is a wasteful number, since it uses less digits than its factorization.

1110155221155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51483.

The product of its (nonzero) digits is 2500, while the sum is 30.

The spelling of 1110155221155 in words is "one trillion, one hundred ten billion, one hundred fifty-five million, two hundred twenty-one thousand, one hundred fifty-five".