22222230 has 32 divisors (see below), whose sum is σ = 56471904. Its totient is φ = 5577216.

The previous prime is 22222223. The next prime is 22222253. The reversal of 22222230 is 3222222.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 21277 + ... + 22296.

It is an arithmetic number, because the mean of its divisors is an integer number (1764747).

Almost surely, 2^22222230 is an apocalyptic number.

22222230 is an abundant number, since it is smaller than the sum of its proper divisors (34249674).

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

22222230 is a wasteful number, since it uses less digits than its factorization.

22222230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43600.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 22222230 is about 4714.0460328682. The cubic root of 22222230 is about 281.1442545674.

Adding to 22222230 its reverse (3222222), we get a palindrome (25444452).

The spelling of 22222230 in words is "twenty-two million, two hundred twenty-two thousand, two hundred thirty".