22011212323 has 8 divisors (see below), whose sum is σ = 22144038336. Its totient is φ = 21878745000.

The previous prime is 22011212303. The next prime is 22011212357. The reversal of 22011212323 is 32321211022.

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

It is a cyclic number.

It is not a de Polignac number, because 22011212323 - 2²¹ = 22009115171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22011212323.

It is not an unprimeable number, because it can be changed into a prime (22011212303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33940 + ... + 212542.

It is an arithmetic number, because the mean of its divisors is an integer number (2768004792).

Almost surely, 2^22011212323 is an apocalyptic number.

22011212323 is a deficient number, since it is larger than the sum of its proper divisors (132826013).

22011212323 is a wasteful number, since it uses less digits than its factorization.

22011212323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179345.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22011212323 its reverse (32321211022), we get a palindrome (54332423345).

The spelling of 22011212323 in words is "twenty-two billion, eleven million, two hundred twelve thousand, three hundred twenty-three".