22112020321 has 8 divisors (see below), whose sum is σ = 22158273960. Its totient is φ = 22065808128.

The previous prime is 22112020303. The next prime is 22112020331. The reversal of 22112020321 is 12302021122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14005539025 + 8106481296 = 118345^2 + 90036^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22112020321 - 2²⁷ = 21977802593 is a prime.

It is a super-3 number, since 3×22112020321³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22112020295 and 22112020304.

It is not an unprimeable number, because it can be changed into a prime (22112020331) 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, 1202025 + ... + 1220281.

It is an arithmetic number, because the mean of its divisors is an integer number (2769784245).

Almost surely, 2^22112020321 is an apocalyptic number.

It is an amenable number.

22112020321 is a deficient number, since it is larger than the sum of its proper divisors (46253639).

22112020321 is a wasteful number, since it uses less digits than its factorization.

22112020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20723.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22112020321 its reverse (12302021122), we get a palindrome (34414041443).

The spelling of 22112020321 in words is "twenty-two billion, one hundred twelve million, twenty thousand, three hundred twenty-one".