22142042437 has 2 divisors, whose sum is σ = 22142042438. Its totient is φ = 22142042436.

The previous prime is 22142042383. The next prime is 22142042459. The reversal of 22142042437 is 73424024122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14922821281 + 7219221156 = 122159^2 + 84966^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22142042437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22142042399 and 22142042408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22142042467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11071021218 + 11071021219.

It is an arithmetic number, because the mean of its divisors is an integer number (11071021219).

Almost surely, 2^22142042437 is an apocalyptic number.

It is an amenable number.

22142042437 is a deficient number, since it is larger than the sum of its proper divisors (1).

22142042437 is an equidigital number, since it uses as much as digits as its factorization.

22142042437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 31.

Adding to 22142042437 its reverse (73424024122), we get a palindrome (95566066559).

The spelling of 22142042437 in words is "twenty-two billion, one hundred forty-two million, forty-two thousand, four hundred thirty-seven".