22240254421 has 8 divisors (see below), whose sum is σ = 27728109504. Its totient is φ = 17330068320.

The previous prime is 22240254419. The next prime is 22240254427. The reversal of 22240254421 is 12445204222.

It is a happy number.

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 22240254421 - 2¹ = 22240254419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22240254421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22240254427) 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, 144417160 + ... + 144417313.

It is an arithmetic number, because the mean of its divisors is an integer number (3466013688).

Almost surely, 2^22240254421 is an apocalyptic number.

It is an amenable number.

22240254421 is a deficient number, since it is larger than the sum of its proper divisors (5487855083).

22240254421 is a wasteful number, since it uses less digits than its factorization.

22240254421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288834491.

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 22240254421 its reverse (12445204222), we get a palindrome (34685458643).

The spelling of 22240254421 in words is "twenty-two billion, two hundred forty million, two hundred fifty-four thousand, four hundred twenty-one".