22131245066431 has 16 divisors (see below), whose sum is σ = 22504914950400. Its totient is φ = 21757928497920.

The previous prime is 22131245066419. The next prime is 22131245066477. The reversal of 22131245066431 is 13466054213122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22131245066431 is a prime.

It is a super-2 number, since 2×22131245066431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131245064431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1742199826 + ... + 1742212528.

It is an arithmetic number, because the mean of its divisors is an integer number (1406557184400).

Almost surely, 2^{22131245066431} is an apocalyptic number.

22131245066431 is a deficient number, since it is larger than the sum of its proper divisors (373669883969).

22131245066431 is a wasteful number, since it uses less digits than its factorization.

22131245066431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24306.

The product of its (nonzero) digits is 207360, while the sum is 40.

Adding to 22131245066431 its reverse (13466054213122), we get a palindrome (35597299279553).

The spelling of 22131245066431 in words is "twenty-two trillion, one hundred thirty-one billion, two hundred forty-five million, sixty-six thousand, four hundred thirty-one".