222666402 has 16 divisors (see below), whose sum is σ = 508951872. Its totient is φ = 63618960.

The previous prime is 222666371. The next prime is 222666467. The reversal of 222666402 is 204666222.

222666402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 222666402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2650749 + ... + 2650832.

It is an arithmetic number, because the mean of its divisors is an integer number (31809492).

Almost surely, 2^222666402 is an apocalyptic number.

222666402 is an abundant number, since it is smaller than the sum of its proper divisors (286285470).

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

222666402 is a wasteful number, since it uses less digits than its factorization.

222666402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5301593.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 222666402 is about 14922.0106554043. The cubic root of 222666402 is about 606.1101598036.

The spelling of 222666402 in words is "two hundred twenty-two million, six hundred sixty-six thousand, four hundred two".