111344111220 has 96 divisors (see below), whose sum is σ = 330345953280. Its totient is φ = 27942710400.

The previous prime is 111344111173. The next prime is 111344111273. The reversal of 111344111220 is 22111443111.

It is a super-2 number, since 2×111344111220² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151272 + ... + 495551.

It is an arithmetic number, because the mean of its divisors is an integer number (3441103680).

Almost surely, 2^111344111220 is an apocalyptic number.

111344111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111344111220 is an abundant number, since it is smaller than the sum of its proper divisors (219001842060).

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

111344111220 is a wasteful number, since it uses less digits than its factorization.

111344111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647005 (or 647003 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 111344111220 its reverse (22111443111), we get a palindrome (133455554331).

The spelling of 111344111220 in words is "one hundred eleven billion, three hundred forty-four million, one hundred eleven thousand, two hundred twenty".