22440125532421 has 8 divisors (see below), whose sum is σ = 22987039400640. Its totient is φ = 21898764089568.

The previous prime is 22440125532397. The next prime is 22440125532457. The reversal of 22440125532421 is 12423552104422.

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 22440125532421 - 2¹¹ = 22440125530373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22440125532491) 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, 1388098161 + ... + 1388114326.

It is an arithmetic number, because the mean of its divisors is an integer number (2873379925080).

Almost surely, 2^{22440125532421} is an apocalyptic number.

It is an amenable number.

22440125532421 is a deficient number, since it is larger than the sum of its proper divisors (546913868219).

22440125532421 is a wasteful number, since it uses less digits than its factorization.

22440125532421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776212683.

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 22440125532421 its reverse (12423552104422), we get a palindrome (34863677636843).

The spelling of 22440125532421 in words is "twenty-two trillion, four hundred forty billion, one hundred twenty-five million, five hundred thirty-two thousand, four hundred twenty-one".