21244002233 has 8 divisors (see below), whose sum is σ = 22174088256. Its totient is φ = 20314452400.

The previous prime is 21244002223. The next prime is 21244002253. The reversal of 21244002233 is 33220044212.

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 21244002233 - 2¹⁴ = 21243985849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21244002199 and 21244002208.

It is not an unprimeable number, because it can be changed into a prime (21244002223) 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, 51998 + ... + 212583.

It is an arithmetic number, because the mean of its divisors is an integer number (2771761032).

Almost surely, 2^21244002233 is an apocalyptic number.

21244002233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21244002233 is a deficient number, since it is larger than the sum of its proper divisors (930086023).

21244002233 is a wasteful number, since it uses less digits than its factorization.

21244002233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268095.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 21244002233 its reverse (33220044212), we get a palindrome (54464046445).

The spelling of 21244002233 in words is "twenty-one billion, two hundred forty-four million, two thousand, two hundred thirty-three".