220222112112 has 120 divisors (see below), whose sum is σ = 636473117280. Its totient is φ = 71028472320.

The previous prime is 220222112111. The next prime is 220222112161. The reversal of 220222112112 is 211211222022.

It is a happy number.

220222112112 is a `hidden beast` number, since 220 + 22 + 211 + 211 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220222112111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 850189 + ... + 1078547.

It is an arithmetic number, because the mean of its divisors is an integer number (5303942644).

Almost surely, 2^220222112112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220222112112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318236558640).

220222112112 is an abundant number, since it is smaller than the sum of its proper divisors (416251005168).

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

220222112112 is a wasteful number, since it uses less digits than its factorization.

220222112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228591 (or 228582 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220222112112 its reverse (211211222022), we get a palindrome (431433334134).

The spelling of 220222112112 in words is "two hundred twenty billion, two hundred twenty-two million, one hundred twelve thousand, one hundred twelve".