21822200393 has 4 divisors (see below), whose sum is σ = 24939657600. Its totient is φ = 18704743188.

The previous prime is 21822200371. The next prime is 21822200447. The reversal of 21822200393 is 39300222812.

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 21822200393 - 2⁸ = 21822200137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21822200303) 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, 1558728593 + ... + 1558728606.

It is an arithmetic number, because the mean of its divisors is an integer number (6234914400).

Almost surely, 2^21822200393 is an apocalyptic number.

It is an amenable number.

21822200393 is a deficient number, since it is larger than the sum of its proper divisors (3117457207).

21822200393 is an equidigital number, since it uses as much as digits as its factorization.

21822200393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117457206.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 21822200393 in words is "twenty-one billion, eight hundred twenty-two million, two hundred thousand, three hundred ninety-three".