222111010212 has 384 divisors, whose sum is σ = 686384799744. Its totient is φ = 54294147072.

The previous prime is 222111010169. The next prime is 222111010217. The reversal of 222111010212 is 212010111222.

It is a junction number, because it is equal to n+sod(n) for n = 222111010191 and 222111010200.

It is not an unprimeable number, because it can be changed into a prime (222111010217) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 424686183 + ... + 424686705.

It is an arithmetic number, because the mean of its divisors is an integer number (1787460416).

Almost surely, 2^222111010212 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 222111010212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343192399872).

222111010212 is an abundant number, since it is smaller than the sum of its proper divisors (464273789532).

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

222111010212 is a wasteful number, since it uses less digits than its factorization.

222111010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067 (or 1065 counting only the distinct ones).

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

Adding to 222111010212 its reverse (212010111222), we get a palindrome (434121121434).

It can be divided in two parts, 222111010 and 212, that added together give a palindrome (222111222).

The spelling of 222111010212 in words is "two hundred twenty-two billion, one hundred eleven million, ten thousand, two hundred twelve".