21223001333 has 8 divisors (see below), whose sum is σ = 21628956960. Its totient is φ = 20818587280.

The previous prime is 21223001329. The next prime is 21223001341. The reversal of 21223001333 is 33310032212.

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 21223001333 - 2² = 21223001329 is a prime.

It is a super-3 number, since 3×21223001333³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21223001363) 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, 357578 + ... + 412683.

It is an arithmetic number, because the mean of its divisors is an integer number (2703619620).

Almost surely, 2^21223001333 is an apocalyptic number.

It is an amenable number.

21223001333 is a deficient number, since it is larger than the sum of its proper divisors (405955627).

21223001333 is an equidigital number, since it uses as much as digits as its factorization.

21223001333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770787.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21223001333 its reverse (33310032212), we get a palindrome (54533033545).

The spelling of 21223001333 in words is "twenty-one billion, two hundred twenty-three million, one thousand, three hundred thirty-three".