111201055 has 16 divisors (see below), whose sum is σ = 152699904. Its totient is φ = 76154400.

The previous prime is 111201043. The next prime is 111201071. The reversal of 111201055 is 550102111.

It is not a de Polignac number, because 111201055 - 2⁵ = 111201023 is a prime.

It is a super-2 number, since 2×111201055² = 24731349266226050, which contains 22 as substring.

It is a congruent number.

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, 35274 + ... + 38296.

It is an arithmetic number, because the mean of its divisors is an integer number (9543744).

Almost surely, 2^111201055 is an apocalyptic number.

111201055 is a deficient number, since it is larger than the sum of its proper divisors (41498849).

111201055 is a wasteful number, since it uses less digits than its factorization.

111201055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4086.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 111201055 is about 10545.1910840914. The cubic root of 111201055 is about 480.8795433170.

Adding to 111201055 its reverse (550102111), we get a palindrome (661303166).

The spelling of 111201055 in words is "one hundred eleven million, two hundred one thousand, fifty-five".