22145121413523 has 12 divisors (see below), whose sum is σ = 31996251061840. Its totient is φ = 14759328061296.

The previous prime is 22145121413521. The next prime is 22145121413533. The reversal of 22145121413523 is 32531412154122.

22145121413523 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 5 + 121 + 4 + 1 + 3 + 523 = 666.

It is not a de Polignac number, because 22145121413523 - 2¹ = 22145121413521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22145121413521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340483543 + ... + 340548576.

Almost surely, 2^{22145121413523} is an apocalyptic number.

22145121413523 is a deficient number, since it is larger than the sum of its proper divisors (9851129648317).

22145121413523 is a wasteful number, since it uses less digits than its factorization.

22145121413523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681035738 (or 681035735 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

Adding to 22145121413523 its reverse (32531412154122), we get a palindrome (54676533567645).

The spelling of 22145121413523 in words is "twenty-two trillion, one hundred forty-five billion, one hundred twenty-one million, four hundred thirteen thousand, five hundred twenty-three".