22100021321 has 8 divisors (see below), whose sum is σ = 25258066560. Its totient is φ = 18942200928.

The previous prime is 22100021257. The next prime is 22100021353. The reversal of 22100021321 is 12312000122.

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 22100021321 - 2⁶ = 22100021257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22100021296 and 22100021305.

It is not an unprimeable number, because it can be changed into a prime (22100021381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354245 + ... + 411933.

It is an arithmetic number, because the mean of its divisors is an integer number (3157258320).

Almost surely, 2^22100021321 is an apocalyptic number.

It is an amenable number.

22100021321 is a deficient number, since it is larger than the sum of its proper divisors (3158045239).

22100021321 is an equidigital number, since it uses as much as digits as its factorization.

22100021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112423.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22100021321 its reverse (12312000122), we get a palindrome (34412021443).

The spelling of 22100021321 in words is "twenty-two billion, one hundred million, twenty-one thousand, three hundred twenty-one".