111320020220 has 48 divisors (see below), whose sum is σ = 241197989760. Its totient is φ = 43134813696.

The previous prime is 111320020219. The next prime is 111320020249. The reversal of 111320020220 is 22020023111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111320020195 and 111320020204.

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, 580937 + ... + 748416.

It is an arithmetic number, because the mean of its divisors is an integer number (5024958120).

Almost surely, 2^111320020220 is an apocalyptic number.

111320020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111320020220 is an abundant number, since it is smaller than the sum of its proper divisors (129877969540).

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

111320020220 is a wasteful number, since it uses less digits than its factorization.

111320020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329494 (or 1329492 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 111320020220 its reverse (22020023111), we get a palindrome (133340043331).

The spelling of 111320020220 in words is "one hundred eleven billion, three hundred twenty million, twenty thousand, two hundred twenty".