23212112222 has 64 divisors (see below), whose sum is σ = 40487610240. Its totient is φ = 9885597696.

The previous prime is 23212112221. The next prime is 23212112237. The reversal of 23212112222 is 22221121232.

It is a junction number, because it is equal to n+sod(n) for n = 23212112194 and 23212112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212112221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4670783 + ... + 4675749.

It is an arithmetic number, because the mean of its divisors is an integer number (632618910).

Almost surely, 2^23212112222 is an apocalyptic number.

23212112222 is a deficient number, since it is larger than the sum of its proper divisors (17275498018).

23212112222 is a wasteful number, since it uses less digits than its factorization.

23212112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5205.

The product of its digits is 384, while the sum is 20.

Adding to 23212112222 its reverse (22221121232), we get a palindrome (45433233454).

The spelling of 23212112222 in words is "twenty-three billion, two hundred twelve million, one hundred twelve thousand, two hundred twenty-two".