23002222 has 4 divisors (see below), whose sum is σ = 34503336. Its totient is φ = 11501110.

The previous prime is 23002201. The next prime is 23002237. The reversal of 23002222 is 22220032.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5750554 + ... + 5750557.

It is an arithmetic number, because the mean of its divisors is an integer number (8625834).

Almost surely, 2^23002222 is an apocalyptic number.

23002222 is a deficient number, since it is larger than the sum of its proper divisors (11501114).

23002222 is a wasteful number, since it uses less digits than its factorization.

23002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11501113.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 23002222 is about 4796.0631772319. The cubic root of 23002222 is about 284.3958557662.

Adding to 23002222 its reverse (22220032), we get a palindrome (45222254).

The spelling of 23002222 in words is "twenty-three million, two thousand, two hundred twenty-two".