22144123440551 has 16 divisors (see below), whose sum is σ = 26796377242944. Its totient is φ = 17864082123264.

The previous prime is 22144123440521. The next prime is 22144123440559. The reversal of 22144123440551 is 15504432144122.

It is not a de Polignac number, because 22144123440551 - 2¹⁴ = 22144123424167 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 (22144123440559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41275541 + ... + 41808593.

It is an arithmetic number, because the mean of its divisors is an integer number (1674773577684).

Almost surely, 2^{22144123440551} is an apocalyptic number.

22144123440551 is a deficient number, since it is larger than the sum of its proper divisors (4652253802393).

22144123440551 is a wasteful number, since it uses less digits than its factorization.

22144123440551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882170.

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 22144123440551 its reverse (15504432144122), we get a palindrome (37648555584673).

The spelling of 22144123440551 in words is "twenty-two trillion, one hundred forty-four billion, one hundred twenty-three million, four hundred forty thousand, five hundred fifty-one".