22431211211445 has 16 divisors (see below), whose sum is σ = 36077843377152. Its totient is φ = 11900677499840.

The previous prime is 22431211211443. The next prime is 22431211211467. The reversal of 22431211211445 is 54411211213422.

It is a happy number.

It is not a de Polignac number, because 22431211211445 - 2¹ = 22431211211443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22431211211443) 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, 3914693682 + ... + 3914699411.

It is an arithmetic number, because the mean of its divisors is an integer number (2254865211072).

Almost surely, 2^{22431211211445} is an apocalyptic number.

It is an amenable number.

22431211211445 is a deficient number, since it is larger than the sum of its proper divisors (13646632165707).

22431211211445 is a wasteful number, since it uses less digits than its factorization.

22431211211445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7829393292.

The product of its digits is 15360, while the sum is 33.

Adding to 22431211211445 its reverse (54411211213422), we get a palindrome (76842422424867).

The spelling of 22431211211445 in words is "twenty-two trillion, four hundred thirty-one billion, two hundred eleven million, two hundred eleven thousand, four hundred forty-five".