20321222199 has 8 divisors (see below), whose sum is σ = 27246332160. Its totient is φ = 13471796856.

The previous prime is 20321222191. The next prime is 20321222261. The reversal of 20321222199 is 99122212302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20321222199 - 2³ = 20321222191 is a prime.

It is a super-2 number, since 2×20321222199² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321222191) 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, 18920527 + ... + 18921600.

It is an arithmetic number, because the mean of its divisors is an integer number (3405791520).

Almost surely, 2^20321222199 is an apocalyptic number.

20321222199 is a deficient number, since it is larger than the sum of its proper divisors (6925109961).

20321222199 is a wasteful number, since it uses less digits than its factorization.

20321222199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37842309.

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 20321222199 in words is "twenty billion, three hundred twenty-one million, two hundred twenty-two thousand, one hundred ninety-nine".