111001133220 has 48 divisors (see below), whose sum is σ = 310848632640. Its totient is φ = 29595972736.

The previous prime is 111001133219. The next prime is 111001133231. The reversal of 111001133220 is 22331100111.

It is a happy number.

It is a super-2 number, since 2×111001133220² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111001133220.

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 15 ways as a sum of consecutive naturals, for example, 289354 + ... + 552926.

It is an arithmetic number, because the mean of its divisors is an integer number (6476013180).

Almost surely, 2^111001133220 is an apocalyptic number.

111001133220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111001133220 is an abundant number, since it is smaller than the sum of its proper divisors (199847499420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111001133220 is a wasteful number, since it uses less digits than its factorization.

111001133220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270604 (or 270602 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 111001133220 its reverse (22331100111), we get a palindrome (133332233331).

The spelling of 111001133220 in words is "one hundred eleven billion, one million, one hundred thirty-three thousand, two hundred twenty".