222112101210 has 128 divisors (see below), whose sum is σ = 566982374400. Its totient is φ = 55527989760.

The previous prime is 222112101209. The next prime is 222112101251. The reversal of 222112101210 is 12101211222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 222112101210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 90324961 + ... + 90327419.

It is an arithmetic number, because the mean of its divisors is an integer number (4429549800).

Almost surely, 2^222112101210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222112101210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283491187200).

222112101210 is an abundant number, since it is smaller than the sum of its proper divisors (344870273190).

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

222112101210 is a wasteful number, since it uses less digits than its factorization.

222112101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 222112101210 its reverse (12101211222), we get a palindrome (234213312432).

The spelling of 222112101210 in words is "two hundred twenty-two billion, one hundred twelve million, one hundred one thousand, two hundred ten".