222666626 has 24 divisors (see below), whose sum is σ = 413339904. Its totient is φ = 88086960.

The previous prime is 222666593. The next prime is 222666637. The reversal of 222666626 is 626666222.

222666626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222666626.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44690 + ... + 49421.

It is an arithmetic number, because the mean of its divisors is an integer number (17222496).

Almost surely, 2^222666626 is an apocalyptic number.

222666626 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

222666626 is a deficient number, since it is larger than the sum of its proper divisors (190673278).

222666626 is a wasteful number, since it uses less digits than its factorization.

222666626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94146 (or 94133 counting only the distinct ones).

The product of its digits is 124416, while the sum is 38.

The square root of 222666626 is about 14922.0181610934. The cubic root of 222666626 is about 606.1103630503.

The spelling of 222666626 in words is "two hundred twenty-two million, six hundred sixty-six thousand, six hundred twenty-six".