222445212 has 48 divisors (see below), whose sum is σ = 584500224. Its totient is φ = 65232000.

The previous prime is 222445193. The next prime is 222445231. The reversal of 222445212 is 212544222.

222445212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222445193) and next prime (222445231).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23089 + ... + 31272.

It is an arithmetic number, because the mean of its divisors is an integer number (12177088).

Almost surely, 2^222445212 is an apocalyptic number.

222445212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

222445212 is an abundant number, since it is smaller than the sum of its proper divisors (362055012).

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

222445212 is a wasteful number, since it uses less digits than its factorization.

222445212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54410 (or 54408 counting only the distinct ones).

The product of its digits is 2560, while the sum is 24.

The square root of 222445212 is about 14914.5972791759. The cubic root of 222445212 is about 605.9093962072.

Adding to 222445212 its reverse (212544222), we get a palindrome (434989434).

The spelling of 222445212 in words is "two hundred twenty-two million, four hundred forty-five thousand, two hundred twelve".