22144201012405 has 4 divisors (see below), whose sum is σ = 26573041214892. Its totient is φ = 17715360809920.

The previous prime is 22144201012327. The next prime is 22144201012429. The reversal of 22144201012405 is 50421010244122.

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 9949173201361 + 12195027811044 = 3154231^2 + 3492138^2 .

It is not a de Polignac number, because 22144201012405 - 2⁷ = 22144201012277 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 3 ways as a sum of consecutive naturals, for example, 2214420101236 + ... + 2214420101245.

It is an arithmetic number, because the mean of its divisors is an integer number (6643260303723).

Almost surely, 2^{22144201012405} is an apocalyptic number.

It is an amenable number.

22144201012405 is a deficient number, since it is larger than the sum of its proper divisors (4428840202487).

22144201012405 is an equidigital number, since it uses as much as digits as its factorization.

22144201012405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4428840202486.

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 22144201012405 its reverse (50421010244122), we get a palindrome (72565211256527).

The spelling of 22144201012405 in words is "twenty-two trillion, one hundred forty-four billion, two hundred one million, twelve thousand, four hundred five".