22240014421 has 4 divisors (see below), whose sum is σ = 23006911500. Its totient is φ = 21473117344.

The previous prime is 22240014409. The next prime is 22240014437. The reversal of 22240014421 is 12441004222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10396045521 + 11843968900 = 101961^2 + 108830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22240014421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22240014392 and 22240014401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22244014421) 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, 383448496 + ... + 383448553.

It is an arithmetic number, because the mean of its divisors is an integer number (5751727875).

Almost surely, 2^22240014421 is an apocalyptic number.

It is an amenable number.

22240014421 is a deficient number, since it is larger than the sum of its proper divisors (766897079).

22240014421 is an equidigital number, since it uses as much as digits as its factorization.

22240014421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766897078.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 22240014421 its reverse (12441004222), we get a palindrome (34681018643).

The spelling of 22240014421 in words is "twenty-two billion, two hundred forty million, fourteen thousand, four hundred twenty-one".