22021011321 has 8 divisors (see below), whose sum is σ = 29395773120. Its totient is φ = 14663461872.

The previous prime is 22021011307. The next prime is 22021011373. The reversal of 22021011321 is 12311012022.

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

It is not a de Polignac number, because 22021011321 - 2⁵ = 22021011289 is a prime.

It is a super-2 number, since 2×22021011321² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22021011321.

It is not an unprimeable number, because it can be changed into a prime (22028011321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4300101 + ... + 4305218.

It is an arithmetic number, because the mean of its divisors is an integer number (3674471640).

Almost surely, 2^22021011321 is an apocalyptic number.

It is an amenable number.

22021011321 is a deficient number, since it is larger than the sum of its proper divisors (7374761799).

22021011321 is an equidigital number, since it uses as much as digits as its factorization.

22021011321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8606175.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22021011321 its reverse (12311012022), we get a palindrome (34332023343).

The spelling of 22021011321 in words is "twenty-two billion, twenty-one million, eleven thousand, three hundred twenty-one".