23212240222 has 4 divisors (see below), whose sum is σ = 34818360336. Its totient is φ = 11606120110.

The previous prime is 23212240213. The next prime is 23212240223. The reversal of 23212240222 is 22204221232.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×23212240222² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 23212240193 and 23212240202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212240223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5803060054 + ... + 5803060057.

It is an arithmetic number, because the mean of its divisors is an integer number (8704590084).

Almost surely, 2^23212240222 is an apocalyptic number.

23212240222 is a deficient number, since it is larger than the sum of its proper divisors (11606120114).

23212240222 is a wasteful number, since it uses less digits than its factorization.

23212240222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11606120113.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 23212240222 its reverse (22204221232), we get a palindrome (45416461454).

The spelling of 23212240222 in words is "twenty-three billion, two hundred twelve million, two hundred forty thousand, two hundred twenty-two".