222112110010212 has 144 divisors (see below), whose sum is σ = 584529115388400. Its totient is φ = 71052798136320.

The previous prime is 222112110010117. The next prime is 222112110010247. The reversal of 222112110010212 is 212010011211222.

222112110010212 is a `hidden beast` number, since 2 + 221 + 121 + 100 + 10 + 212 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 2609336238336 + 219502773771876 = 1615344^2 + 14815626^2 .

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, 46195662 + ... + 50776602.

It is an arithmetic number, because the mean of its divisors is an integer number (4059229967975).

Almost surely, 2^{222112110010212} 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 222112110010212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292264557694200).

222112110010212 is an abundant number, since it is smaller than the sum of its proper divisors (362417005378188).

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

222112110010212 is a wasteful number, since it uses less digits than its factorization.

222112110010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4581486 (or 4581481 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222112110010212 its reverse (212010011211222), we get a palindrome (434122121221434).

The spelling of 222112110010212 in words is "two hundred twenty-two trillion, one hundred twelve billion, one hundred ten million, ten thousand, two hundred twelve".