22400323421 has 8 divisors (see below), whose sum is σ = 25601282304. Its totient is φ = 19199592720.

The previous prime is 22400323417. The next prime is 22400323447. The reversal of 22400323421 is 12432300422.

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

It is not a de Polignac number, because 22400323421 - 2² = 22400323417 is a prime.

It is a super-2 number, since 2×22400323421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22400323021) 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, 315791 + ... + 380163.

It is an arithmetic number, because the mean of its divisors is an integer number (3200160288).

Almost surely, 2^22400323421 is an apocalyptic number.

It is an amenable number.

22400323421 is a deficient number, since it is larger than the sum of its proper divisors (3200958883).

22400323421 is an equidigital number, since it uses as much as digits as its factorization.

22400323421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114091.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 22400323421 its reverse (12432300422), we get a palindrome (34832623843).

The spelling of 22400323421 in words is "twenty-two billion, four hundred million, three hundred twenty-three thousand, four hundred twenty-one".