222211210112 has 128 divisors (see below), whose sum is σ = 487119360000. Its totient is φ = 100570429440.

The previous prime is 222211210079. The next prime is 222211210129. The reversal of 222211210112 is 211012112222.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×222211210112² (a number of 23 digits) contains 22 as substring.

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, 5937314 + ... + 5974622.

It is an arithmetic number, because the mean of its divisors is an integer number (3805620000).

Almost surely, 2^222211210112 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 222211210112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243559680000).

222211210112 is an abundant number, since it is smaller than the sum of its proper divisors (264908149888).

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

222211210112 is a wasteful number, since it uses less digits than its factorization.

222211210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37452 (or 37440 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222211210112 its reverse (211012112222), we get a palindrome (433223322334).

The spelling of 222211210112 in words is "two hundred twenty-two billion, two hundred eleven million, two hundred ten thousand, one hundred twelve".