21814001133 has 4 divisors (see below), whose sum is σ = 29085334848. Its totient is φ = 14542667420.

The previous prime is 21814001119. The next prime is 21814001141. The reversal of 21814001133 is 33110041812.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21814001133 - 2¹⁴ = 21813984749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21814001933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3635666853 + ... + 3635666858.

It is an arithmetic number, because the mean of its divisors is an integer number (7271333712).

Almost surely, 2^21814001133 is an apocalyptic number.

It is an amenable number.

21814001133 is a deficient number, since it is larger than the sum of its proper divisors (7271333715).

21814001133 is an equidigital number, since it uses as much as digits as its factorization.

21814001133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7271333714.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 21814001133 its reverse (33110041812), we get a palindrome (54924042945).

The spelling of 21814001133 in words is "twenty-one billion, eight hundred fourteen million, one thousand, one hundred thirty-three".