23211122 has 16 divisors (see below), whose sum is σ = 39981600. Its totient is φ = 9995040.

The previous prime is 23211121. The next prime is 23211143. The reversal of 23211122 is 22111232.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23211097 and 23211106.

It is not an unprimeable number, because it can be changed into a prime (23211121) by changing a digit.

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, 27347 + ... + 28182.

It is an arithmetic number, because the mean of its divisors is an integer number (2498850).

Almost surely, 2^23211122 is an apocalyptic number.

23211122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23211122 is a deficient number, since it is larger than the sum of its proper divisors (16770478).

23211122 is a wasteful number, since it uses less digits than its factorization.

23211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55561.

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

The square root of 23211122 is about 4817.7922329631. The cubic root of 23211122 is about 285.2541981586.

Adding to 23211122 its reverse (22111232), we get a palindrome (45322354).

It can be divided in two parts, 2321 and 1122, that added together give a palindrome (3443).

The spelling of 23211122 in words is "twenty-three million, two hundred eleven thousand, one hundred twenty-two".