222212110212 has 96 divisors (see below), whose sum is σ = 581411295360. Its totient is φ = 73391616000.

The previous prime is 222212110207. The next prime is 222212110213. The reversal of 222212110212 is 212011212222.

It is a happy number.

222212110212 is a `hidden beast` number, since 22 + 221 + 211 + 0 + 212 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (222212110213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5210608 + ... + 5253080.

It is an arithmetic number, because the mean of its divisors is an integer number (6056367660).

Almost surely, 2^222212110212 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 222212110212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290705647680).

222212110212 is an abundant number, since it is smaller than the sum of its proper divisors (359199185148).

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

222212110212 is a wasteful number, since it uses less digits than its factorization.

222212110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42930 (or 42922 counting only the distinct ones).

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

Adding to 222212110212 its reverse (212011212222), we get a palindrome (434223322434).

The spelling of 222212110212 in words is "two hundred twenty-two billion, two hundred twelve million, one hundred ten thousand, two hundred twelve".