21223000133 has 8 divisors (see below), whose sum is σ = 22420655520. Its totient is φ = 20033410320.

The previous prime is 21223000093. The next prime is 21223000147. The reversal of 21223000133 is 33100032212.

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 21223000133 - 2⁶ = 21223000069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21223000433) 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, 2010983 + ... + 2021508.

It is an arithmetic number, because the mean of its divisors is an integer number (2802581940).

Almost surely, 2^21223000133 is an apocalyptic number.

It is an amenable number.

21223000133 is a deficient number, since it is larger than the sum of its proper divisors (1197655387).

21223000133 is a wasteful number, since it uses less digits than its factorization.

21223000133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4032787.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21223000133 its reverse (33100032212), we get a palindrome (54323032345).

The spelling of 21223000133 in words is "twenty-one billion, two hundred twenty-three million, one hundred thirty-three", and thus it is an aban number.