222450612 has 12 divisors (see below), whose sum is σ = 519051456. Its totient is φ = 74150200.

The previous prime is 222450607. The next prime is 222450617. The reversal of 222450612 is 216054222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222450607) and next prime (222450617).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222450617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9268764 + ... + 9268787.

It is an arithmetic number, because the mean of its divisors is an integer number (43254288).

Almost surely, 2^222450612 is an apocalyptic number.

It is an amenable number.

222450612 is an abundant number, since it is smaller than the sum of its proper divisors (296600844).

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

222450612 is a wasteful number, since it uses less digits than its factorization.

222450612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18537558 (or 18537556 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 222450612 is about 14914.7783087782. The cubic root of 222450612 is about 605.9142991138.

The spelling of 222450612 in words is "two hundred twenty-two million, four hundred fifty thousand, six hundred twelve".