22215232405 has 8 divisors (see below), whose sum is σ = 26668826784. Its totient is φ = 17765154000.

The previous prime is 22215232399. The next prime is 22215232423. The reversal of 22215232405 is 50423251222.

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

It is not a de Polignac number, because 22215232405 - 2¹¹ = 22215230357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 865071 + ... + 890380.

It is an arithmetic number, because the mean of its divisors is an integer number (3333603348).

Almost surely, 2^22215232405 is an apocalyptic number.

It is an amenable number.

22215232405 is a deficient number, since it is larger than the sum of its proper divisors (4453594379).

22215232405 is a wasteful number, since it uses less digits than its factorization.

22215232405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757987.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 22215232405 its reverse (50423251222), we get a palindrome (72638483627).

The spelling of 22215232405 in words is "twenty-two billion, two hundred fifteen million, two hundred thirty-two thousand, four hundred five".