222342012 has 36 divisors (see below), whose sum is σ = 586469520. Its totient is φ = 70891392.

The previous prime is 222341993. The next prime is 222342017. The reversal of 222342012 is 210243222.

222342012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222342017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133437 + ... + 135092.

It is an arithmetic number, because the mean of its divisors is an integer number (16290820).

Almost surely, 2^222342012 is an apocalyptic number.

It is an amenable number.

222342012 is an abundant number, since it is smaller than the sum of its proper divisors (364127508).

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

222342012 is a wasteful number, since it uses less digits than its factorization.

222342012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268562 (or 268557 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 222342012 is about 14911.1371799739. The cubic root of 222342012 is about 605.8156809630.

Adding to 222342012 its reverse (210243222), we get a palindrome (432585234).

The spelling of 222342012 in words is "two hundred twenty-two million, three hundred forty-two thousand, twelve".