222112112004 has 144 divisors (see below), whose sum is σ = 599830358400. Its totient is φ = 69146795520.

The previous prime is 222112111931. The next prime is 222112112023. The reversal of 222112112004 is 400211211222.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6903547 + ... + 6935645.

It is an arithmetic number, because the mean of its divisors is an integer number (4165488600).

Almost surely, 2^222112112004 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 222112112004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299915179200).

222112112004 is an abundant number, since it is smaller than the sum of its proper divisors (377718246396).

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

222112112004 is a wasteful number, since it uses less digits than its factorization.

222112112004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32330 (or 32325 counting only the distinct ones).

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

Adding to 222112112004 its reverse (400211211222), we get a palindrome (622323323226).

The spelling of 222112112004 in words is "two hundred twenty-two billion, one hundred twelve million, one hundred twelve thousand, four".