21223011322 has 8 divisors (see below), whose sum is σ = 31837761972. Its totient is φ = 10610424000.

The previous prime is 21223011301. The next prime is 21223011323. The reversal of 21223011322 is 22311032212.

It can be written as a sum of positive squares in 2 ways, for example, as 19802399841 + 1420611481 = 140721^2 + 37691^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 21223011322.

It is not an unprimeable number, because it can be changed into a prime (21223011323) 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 3 ways as a sum of consecutive naturals, for example, 516079 + ... + 555682.

Almost surely, 2^21223011322 is an apocalyptic number.

21223011322 is a deficient number, since it is larger than the sum of its proper divisors (10614750650).

21223011322 is a wasteful number, since it uses less digits than its factorization.

21223011322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081664.

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

Adding to 21223011322 its reverse (22311032212), we get a palindrome (43534043534).

The spelling of 21223011322 in words is "twenty-one billion, two hundred twenty-three million, eleven thousand, three hundred twenty-two".