111021132222 has 320 divisors, whose sum is σ = 335144646144. Its totient is φ = 26528290560.

The previous prime is 111021132193. The next prime is 111021132307. The reversal of 111021132222 is 222231120111.

111021132222 is a `hidden beast` number, since 1 + 110 + 211 + 322 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111021132195 and 111021132204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 56269228 + ... + 56271200.

Almost surely, 2^111021132222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111021132222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167572323072).

111021132222 is an abundant number, since it is smaller than the sum of its proper divisors (224123513922).

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

111021132222 is a wasteful number, since it uses less digits than its factorization.

111021132222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365 (or 2356 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 111021132222 its reverse (222231120111), we get a palindrome (333252252333).

The spelling of 111021132222 in words is "one hundred eleven billion, twenty-one million, one hundred thirty-two thousand, two hundred twenty-two".