222332012 has 72 divisors (see below), whose sum is σ = 471234960. Its totient is φ = 91445760.

The previous prime is 222331981. The next prime is 222332081. The reversal of 222332012 is 210233222.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 586439 + ... + 586817.

It is an arithmetic number, because the mean of its divisors is an integer number (6544930).

Almost surely, 2^222332012 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 222332012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235617480).

222332012 is an abundant number, since it is smaller than the sum of its proper divisors (248902948).

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

222332012 is a wasteful number, since it uses less digits than its factorization.

222332012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 222332012 is about 14910.8018563724. The cubic root of 222332012 is about 605.8065984875.

Adding to 222332012 its reverse (210233222), we get a palindrome (432565234).

The spelling of 222332012 in words is "two hundred twenty-two million, three hundred thirty-two thousand, twelve".