111010211012220 has 48 divisors (see below), whose sum is σ = 334738482439200. Its totient is φ = 27325590402816.

The previous prime is 111010211012219. The next prime is 111010211012269. The reversal of 111010211012220 is 22210112010111.

It is a happy number.

It is a super-2 number, since 2×111010211012220² (a number of 29 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 111010211012220.

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, 71160390895 + ... + 71160392454.

It is an arithmetic number, because the mean of its divisors is an integer number (6973718384150).

Almost surely, 2^{111010211012220} is an apocalyptic number.

111010211012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111010211012220 is an abundant number, since it is smaller than the sum of its proper divisors (223728271426980).

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

111010211012220 is a wasteful number, since it uses less digits than its factorization.

111010211012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142320783374 (or 142320783372 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111010211012220 its reverse (22210112010111), we get a palindrome (133220323022331).

The spelling of 111010211012220 in words is "one hundred eleven trillion, ten billion, two hundred eleven million, twelve thousand, two hundred twenty".