22021213323 has 16 divisors (see below), whose sum is σ = 29920700160. Its totient is φ = 14401362144.

The previous prime is 22021213301. The next prime is 22021213327. The reversal of 22021213323 is 32331212022.

It is a happy number.

It is not a de Polignac number, because 22021213323 - 2⁶ = 22021213259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22021213323.

It is not an unprimeable number, because it can be changed into a prime (22021213327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1780840 + ... + 1793162.

It is an arithmetic number, because the mean of its divisors is an integer number (1870043760).

Almost surely, 2^22021213323 is an apocalyptic number.

22021213323 is a deficient number, since it is larger than the sum of its proper divisors (7899486837).

22021213323 is a wasteful number, since it uses less digits than its factorization.

22021213323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23618.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22021213323 its reverse (32331212022), we get a palindrome (54352425345).

The spelling of 22021213323 in words is "twenty-two billion, twenty-one million, two hundred thirteen thousand, three hundred twenty-three".