111233221230 has 128 divisors (see below), whose sum is σ = 283507568640. Its totient is φ = 27870543360.

The previous prime is 111233221223. The next prime is 111233221259. The reversal of 111233221230 is 32122332111.

It is a junction number, because it is equal to n+sod(n) for n = 111233221197 and 111233221206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46676619 + ... + 46679001.

It is an arithmetic number, because the mean of its divisors is an integer number (2214902880).

Almost surely, 2^111233221230 is an apocalyptic number.

111233221230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111233221230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141753784320).

111233221230 is an abundant number, since it is smaller than the sum of its proper divisors (172274347410).

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

111233221230 is a wasteful number, since it uses less digits than its factorization.

111233221230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3586.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 111233221230 its reverse (32122332111), we get a palindrome (143355553341).

The spelling of 111233221230 in words is "one hundred eleven billion, two hundred thirty-three million, two hundred twenty-one thousand, two hundred thirty".