23122222 has 16 divisors (see below), whose sum is σ = 37441440. Its totient is φ = 10676512.

The previous prime is 23122219. The next prime is 23122241. The reversal of 23122222 is 22222132.

It is a junction number, because it is equal to n+sod(n) for n = 23122196 and 23122205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7333 + ... + 10000.

It is an arithmetic number, because the mean of its divisors is an integer number (2340090).

Almost surely, 2^23122222 is an apocalyptic number.

23122222 is a deficient number, since it is larger than the sum of its proper divisors (14319218).

23122222 is a wasteful number, since it uses less digits than its factorization.

23122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17387.

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

The square root of 23122222 is about 4808.5571640566. The cubic root of 23122222 is about 284.8895519499.

Adding to 23122222 its reverse (22222132), we get a palindrome (45344354).

The spelling of 23122222 in words is "twenty-three million, one hundred twenty-two thousand, two hundred twenty-two".