22011212223 has 96 divisors (see below), whose sum is σ = 43494796800. Its totient is φ = 10355454720.

The previous prime is 22011212203. The next prime is 22011212233. The reversal of 22011212223 is 32221211022.

22011212223 is a `hidden beast` number, since 220 + 11 + 212 + 223 = 666.

It is not a de Polignac number, because 22011212223 - 2¹⁰ = 22011211199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22011212196 and 22011212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011212203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 454428 + ... + 500526.

It is an arithmetic number, because the mean of its divisors is an integer number (453070800).

Almost surely, 2^22011212223 is an apocalyptic number.

22011212223 is a deficient number, since it is larger than the sum of its proper divisors (21483584577).

22011212223 is a wasteful number, since it uses less digits than its factorization.

22011212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46189 (or 46186 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22011212223 its reverse (32221211022), we get a palindrome (54232423245).

The spelling of 22011212223 in words is "twenty-two billion, eleven million, two hundred twelve thousand, two hundred twenty-three".