23222222 has 8 divisors (see below), whose sum is σ = 34914000. Its totient is φ = 11584224.

The previous prime is 23222219. The next prime is 23222231. The reversal of 23222222 is 22222232.

It is a sphenic number, since it is the product of 3 distinct primes.

23222222 is a modest number, since divided by 22222 gives 232 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 23222222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12347 + ... + 14102.

It is an arithmetic number, because the mean of its divisors is an integer number (4364250).

Almost surely, 2^23222222 is an apocalyptic number.

23222222 is a deficient number, since it is larger than the sum of its proper divisors (11691778).

23222222 is a wasteful number, since it uses less digits than its factorization.

23222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26890.

The product of its digits is 384, while the sum is 17.

The square root of 23222222 is about 4818.9440752098. The cubic root of 23222222 is about 285.2996622397.

Adding to 23222222 its reverse (22222232), we get a palindrome (45444454).

The spelling of 23222222 in words is "twenty-three million, two hundred twenty-two thousand, two hundred twenty-two".