22142420244877 has 2 divisors, whose sum is σ = 22142420244878. Its totient is φ = 22142420244876.

The previous prime is 22142420244871. The next prime is 22142420244937. The reversal of 22142420244877 is 77844202424122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19068688966441 + 3073731278436 = 4366771^2 + 1753206^2 .

It is a cyclic number.

It is not a de Polignac number, because 22142420244877 - 2¹¹ = 22142420242829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22142420244877.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22142420244871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11071210122438 + 11071210122439.

It is an arithmetic number, because the mean of its divisors is an integer number (11071210122439).

Almost surely, 2^{22142420244877} is an apocalyptic number.

It is an amenable number.

22142420244877 is a deficient number, since it is larger than the sum of its proper divisors (1).

22142420244877 is an equidigital number, since it uses as much as digits as its factorization.

22142420244877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3211264, while the sum is 49.

Adding to 22142420244877 its reverse (77844202424122), we get a palindrome (99986622668999).

The spelling of 22142420244877 in words is "twenty-two trillion, one hundred forty-two billion, four hundred twenty million, two hundred forty-four thousand, eight hundred seventy-seven".