23221222 has 8 divisors (see below), whose sum is σ = 34878456. Its totient is φ = 11595072.

The previous prime is 23221193. The next prime is 23221223. The reversal of 23221222 is 22212232.

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

It is a junction number, because it is equal to n+sod(n) for n = 23221196 and 23221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5803 + ... + 8950.

It is an arithmetic number, because the mean of its divisors is an integer number (4359807).

Almost surely, 2^23221222 is an apocalyptic number.

23221222 is a deficient number, since it is larger than the sum of its proper divisors (11657234).

23221222 is a wasteful number, since it uses less digits than its factorization.

23221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15542.

The product of its digits is 192, while the sum is 16.

The square root of 23221222 is about 4818.8403169227. The cubic root of 23221222 is about 285.2955669704.

Adding to 23221222 its reverse (22212232), we get a palindrome (45433454).

The spelling of 23221222 in words is "twenty-three million, two hundred twenty-one thousand, two hundred twenty-two".