111220020112 has 20 divisors (see below), whose sum is σ = 216935027100. Its totient is φ = 55236787328.

The previous prime is 111220020089. The next prime is 111220020137. The reversal of 111220020112 is 211020022111.

It can be written as a sum of positive squares in 2 ways, for example, as 23139277456 + 88080742656 = 152116^2 + 296784^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111220020092 and 111220020101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23323963 + ... + 23328730.

It is an arithmetic number, because the mean of its divisors is an integer number (10846751355).

Almost surely, 2^111220020112 is an apocalyptic number.

It is an amenable number.

111220020112 is a deficient number, since it is larger than the sum of its proper divisors (105715006988).

111220020112 is a wasteful number, since it uses less digits than its factorization.

111220020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46652850 (or 46652844 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111220020112 its reverse (211020022111), we get a palindrome (322240042223).

The spelling of 111220020112 in words is "one hundred eleven billion, two hundred twenty million, twenty thousand, one hundred twelve".