22000132321 has 4 divisors (see below), whose sum is σ = 22000906692. Its totient is φ = 21999357952.

The previous prime is 22000132309. The next prime is 22000132333. The reversal of 22000132321 is 12323100022.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22000132309) and next prime (22000132333).

It can be written as a sum of positive squares in 2 ways, for example, as 11248723600 + 10751408721 = 106060^2 + 103689^2 .

It is a cyclic number.

It is not a de Polignac number, because 22000132321 - 2⁵ = 22000132289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22000132295 and 22000132304.

It is not an unprimeable number, because it can be changed into a prime (22000132351) 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, 342880 + ... + 401953.

It is an arithmetic number, because the mean of its divisors is an integer number (5500226673).

Almost surely, 2^22000132321 is an apocalyptic number.

It is an amenable number.

22000132321 is a deficient number, since it is larger than the sum of its proper divisors (774371).

22000132321 is an equidigital number, since it uses as much as digits as its factorization.

22000132321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774370.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22000132321 its reverse (12323100022), we get a palindrome (34323232343).

The spelling of 22000132321 in words is "twenty-two billion, one hundred thirty-two thousand, three hundred twenty-one".