222222630 has 32 divisors (see below), whose sum is σ = 609525504. Its totient is φ = 50793696.

The previous prime is 222222607. The next prime is 222222641. The reversal of 222222630 is 36222222.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 222222597 and 222222606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528892 + ... + 529311.

It is an arithmetic number, because the mean of its divisors is an integer number (19047672).

Almost surely, 2^222222630 is an apocalyptic number.

222222630 is an abundant number, since it is smaller than the sum of its proper divisors (387302874).

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

222222630 is a wasteful number, since it uses less digits than its factorization.

222222630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058220.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 222222630 is about 14907.1335272748. The cubic root of 222222630 is about 605.7072347679.

Adding to 222222630 its reverse (36222222), we get a palindrome (258444852).

The spelling of 222222630 in words is "two hundred twenty-two million, two hundred twenty-two thousand, six hundred thirty".