222101112 has 64 divisors (see below), whose sum is σ = 577612800. Its totient is φ = 71089920.

The previous prime is 222101101. The next prime is 222101123. The reversal of 222101112 is 211101222.

It is an interprime number because it is at equal distance from previous prime (222101101) and next prime (222101123).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100839 + ... + 103017.

It is an arithmetic number, because the mean of its divisors is an integer number (9025200).

Almost surely, 2^222101112 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 222101112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288806400).

222101112 is an abundant number, since it is smaller than the sum of its proper divisors (355511688).

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

222101112 is a wasteful number, since it uses less digits than its factorization.

222101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356 (or 2352 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 222101112 is about 14903.0571360376. The cubic root of 222101112 is about 605.5968083422.

Adding to 222101112 its reverse (211101222), we get a palindrome (433202334).

The spelling of 222101112 in words is "two hundred twenty-two million, one hundred one thousand, one hundred twelve".