21223322233 has 8 divisors (see below), whose sum is σ = 21280582400. Its totient is φ = 21166100928.

The previous prime is 21223322161. The next prime is 21223322249. The reversal of 21223322233 is 33222332212.

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 21223322233 - 2²⁵ = 21189767801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21223322198 and 21223322207.

It is not an unprimeable number, because it can be changed into a prime (21223322273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1325248 + ... + 1341166.

It is an arithmetic number, because the mean of its divisors is an integer number (2660072800).

Almost surely, 2^21223322233 is an apocalyptic number.

It is an amenable number.

21223322233 is a deficient number, since it is larger than the sum of its proper divisors (57260167).

21223322233 is a wasteful number, since it uses less digits than its factorization.

21223322233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19431.

The product of its digits is 5184, while the sum is 25.

Adding to 21223322233 its reverse (33222332212), we get a palindrome (54445654445).

The spelling of 21223322233 in words is "twenty-one billion, two hundred twenty-three million, three hundred twenty-two thousand, two hundred thirty-three".