111203440220 has 12 divisors (see below), whose sum is σ = 233527224504. Its totient is φ = 44481376080.

The previous prime is 111203440211. The next prime is 111203440259. The reversal of 111203440220 is 22044302111.

It is a super-2 number, since 2×111203440220² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 5560172011 = 111203440220 / (1 + 1 + 1 + 2 + 0 + 3 + 4 + 4 + 0 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 111203440192 and 111203440201.

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, 2780085986 + ... + 2780086025.

It is an arithmetic number, because the mean of its divisors is an integer number (19460602042).

Almost surely, 2^111203440220 is an apocalyptic number.

111203440220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111203440220 is an abundant number, since it is smaller than the sum of its proper divisors (122323784284).

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

111203440220 is a wasteful number, since it uses less digits than its factorization.

111203440220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5560172020 (or 5560172018 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 111203440220 its reverse (22044302111), we get a palindrome (133247742331).

The spelling of 111203440220 in words is "one hundred eleven billion, two hundred three million, four hundred forty thousand, two hundred twenty".