222542612 has 6 divisors (see below), whose sum is σ = 389449578. Its totient is φ = 111271304.

The previous prime is 222542599. The next prime is 222542647. The reversal of 222542612 is 216245222.

222542612 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 171191056 + 51351556 = 13084^2 + 7166^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27817823 + ... + 27817830.

It is an arithmetic number, because the mean of its divisors is an integer number (64908263).

Almost surely, 2^222542612 is an apocalyptic number.

It is an amenable number.

222542612 is a deficient number, since it is larger than the sum of its proper divisors (166906966).

222542612 is a wasteful number, since it uses less digits than its factorization.

222542612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55635657 (or 55635655 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 222542612 is about 14917.8621792802. The cubic root of 222542612 is about 605.9978179258.

Adding to 222542612 its reverse (216245222), we get a palindrome (438787834).

The spelling of 222542612 in words is "two hundred twenty-two million, five hundred forty-two thousand, six hundred twelve".