22443424423121 has 16 divisors (see below), whose sum is σ = 24186128423184. Its totient is φ = 20703048731904.

The previous prime is 22443424423111. The next prime is 22443424423127. The reversal of 22443424423121 is 12132442434422.

It can be written as a sum of positive squares in 8 ways, for example, as 7063693533121 + 15379730890000 = 2657761^2 + 3921700^2 .

It is a cyclic number.

It is not a de Polignac number, because 22443424423121 - 2³⁰ = 22442350681297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22443424423127) 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, 560883311 + ... + 560923323.

It is an arithmetic number, because the mean of its divisors is an integer number (1511633026449).

Almost surely, 2^{22443424423121} is an apocalyptic number.

It is an amenable number.

22443424423121 is a deficient number, since it is larger than the sum of its proper divisors (1742704000063).

22443424423121 is a wasteful number, since it uses less digits than its factorization.

22443424423121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68020.

The product of its digits is 294912, while the sum is 38.

Adding to 22443424423121 its reverse (12132442434422), we get a palindrome (34575866857543).

The spelling of 22443424423121 in words is "twenty-two trillion, four hundred forty-three billion, four hundred twenty-four million, four hundred twenty-three thousand, one hundred twenty-one".