22212012323 has 8 divisors (see below), whose sum is σ = 22397946480. Its totient is φ = 22026852000.

The previous prime is 22212012313. The next prime is 22212012343. The reversal of 22212012323 is 32321021222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22212012323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22212012295 and 22212012304.

It is not an unprimeable number, because it can be changed into a prime (22212012313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135740 + ... + 250697.

It is an arithmetic number, because the mean of its divisors is an integer number (2799743310).

Almost surely, 2^22212012323 is an apocalyptic number.

22212012323 is a deficient number, since it is larger than the sum of its proper divisors (185934157).

22212012323 is a wasteful number, since it uses less digits than its factorization.

22212012323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386917.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22212012323 its reverse (32321021222), we get a palindrome (54533033545).

The spelling of 22212012323 in words is "twenty-two billion, two hundred twelve million, twelve thousand, three hundred twenty-three".