111320222221 has 16 divisors (see below), whose sum is σ = 120268108800. Its totient is φ = 102427797888.

The previous prime is 111320222213. The next prime is 111320222267. The reversal of 111320222221 is 122222023111.

It is not a de Polignac number, because 111320222221 - 2³ = 111320222213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111320252221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5825160 + ... + 5844238.

It is an arithmetic number, because the mean of its divisors is an integer number (7516756800).

Almost surely, 2^111320222221 is an apocalyptic number.

It is an amenable number.

111320222221 is a deficient number, since it is larger than the sum of its proper divisors (8947886579).

111320222221 is a wasteful number, since it uses less digits than its factorization.

111320222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20508.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 111320222221 its reverse (122222023111), we get a palindrome (233542245332).

The spelling of 111320222221 in words is "one hundred eleven billion, three hundred twenty million, two hundred twenty-two thousand, two hundred twenty-one".