23222111 has 16 divisors (see below), whose sum is σ = 26611200. Its totient is φ = 20058720.

The previous prime is 23222099. The next prime is 23222137. The reversal of 23222111 is 11122232.

It is a happy number.

It is not a de Polignac number, because 23222111 - 2¹⁰ = 23221087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23222141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66365 + ... + 66713.

It is an arithmetic number, because the mean of its divisors is an integer number (1663200).

Almost surely, 2^23222111 is an apocalyptic number.

23222111 is a deficient number, since it is larger than the sum of its proper divisors (3389089).

23222111 is a wasteful number, since it uses less digits than its factorization.

23222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646.

The product of its digits is 48, while the sum is 14.

The square root of 23222111 is about 4818.9325581502. The cubic root of 23222111 is about 285.2992076706.

Adding to 23222111 its reverse (11122232), we get a palindrome (34344343).

It can be divided in two parts, 232221 and 11, that added together give a palindrome (232232).

The spelling of 23222111 in words is "twenty-three million, two hundred twenty-two thousand, one hundred eleven".