111221013320 has 32 divisors (see below), whose sum is σ = 250333744320. Its totient is φ = 44473033920.

The previous prime is 111221013301. The next prime is 111221013419. The reversal of 111221013320 is 23310122111.

It is a super-2 number, since 2×111221013320² (a number of 23 digits) contains 22 as substring.

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, 362786 + ... + 595025.

It is an arithmetic number, because the mean of its divisors is an integer number (7822929510).

Almost surely, 2^111221013320 is an apocalyptic number.

111221013320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111221013320 is an abundant number, since it is smaller than the sum of its proper divisors (139112731000).

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

111221013320 is a wasteful number, since it uses less digits than its factorization.

111221013320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960725 (or 960721 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 111221013320 its reverse (23310122111), we get a palindrome (134531135431).

The spelling of 111221013320 in words is "one hundred eleven billion, two hundred twenty-one million, thirteen thousand, three hundred twenty".