111320211220 has 24 divisors (see below), whose sum is σ = 233797140864. Its totient is φ = 44523380256.

The previous prime is 111320211199. The next prime is 111320211341. The reversal of 111320211220 is 22112023111.

It is a junction number, because it is equal to n+sod(n) for n = 111320211194 and 111320211203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96744 + ... + 481663.

It is an arithmetic number, because the mean of its divisors is an integer number (9741547536).

Almost surely, 2^111320211220 is an apocalyptic number.

111320211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111320211220 is an abundant number, since it is smaller than the sum of its proper divisors (122476929644).

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

111320211220 is a wasteful number, since it uses less digits than its factorization.

111320211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588039 (or 588037 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 111320211220 its reverse (22112023111), we get a palindrome (133432234331).

The spelling of 111320211220 in words is "one hundred eleven billion, three hundred twenty million, two hundred eleven thousand, two hundred twenty".