222311332212 has 12 divisors (see below), whose sum is σ = 518726441856. Its totient is φ = 74103777400.

The previous prime is 222311332169. The next prime is 222311332219. The reversal of 222311332212 is 212233113222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222311332219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9262972164 + ... + 9262972187.

It is an arithmetic number, because the mean of its divisors is an integer number (43227203488).

Almost surely, 2^222311332212 is an apocalyptic number.

It is an amenable number.

222311332212 is an abundant number, since it is smaller than the sum of its proper divisors (296415109644).

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

222311332212 is a wasteful number, since it uses less digits than its factorization.

222311332212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18525944358 (or 18525944356 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

Adding to 222311332212 its reverse (212233113222), we get a palindrome (434544445434).

The spelling of 222311332212 in words is "two hundred twenty-two billion, three hundred eleven million, three hundred thirty-two thousand, two hundred twelve".