21331312322233 has 8 divisors (see below), whose sum is σ = 21632022397440. Its totient is φ = 21030609720960.

The previous prime is 21331312322231. The next prime is 21331312322239. The reversal of 21331312322233 is 33222321313312.

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 21331312322233 - 2¹ = 21331312322231 is a prime.

It is a super-2 number, since 2×21331312322233² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21331312322195 and 21331312322204.

It is not an unprimeable number, because it can be changed into a prime (21331312322231) 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 7 ways as a sum of consecutive naturals, for example, 4009353 + ... + 7664041.

It is an arithmetic number, because the mean of its divisors is an integer number (2704002799680).

Almost surely, 2^{21331312322233} is an apocalyptic number.

It is an amenable number.

21331312322233 is a deficient number, since it is larger than the sum of its proper divisors (300710075207).

21331312322233 is an equidigital number, since it uses as much as digits as its factorization.

21331312322233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3736967.

The product of its digits is 23328, while the sum is 31.

Adding to 21331312322233 its reverse (33222321313312), we get a palindrome (54553633635545).

The spelling of 21331312322233 in words is "twenty-one trillion, three hundred thirty-one billion, three hundred twelve million, three hundred twenty-two thousand, two hundred thirty-three".