111444010220 has 24 divisors (see below), whose sum is σ = 235523080464. Its totient is φ = 44293669056.

The previous prime is 111444010213. The next prime is 111444010247. The reversal of 111444010220 is 22010444111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 111444010192 and 111444010201.

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 7 ways as a sum of consecutive naturals, for example, 17742722 + ... + 17749001.

It is an arithmetic number, because the mean of its divisors is an integer number (9813461686).

Almost surely, 2^111444010220 is an apocalyptic number.

111444010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111444010220 is an abundant number, since it is smaller than the sum of its proper divisors (124079070244).

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

111444010220 is a wasteful number, since it uses less digits than its factorization.

111444010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35491889 (or 35491887 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 111444010220 its reverse (22010444111), we get a palindrome (133454454331).

The spelling of 111444010220 in words is "one hundred eleven billion, four hundred forty-four million, ten thousand, two hundred twenty".