22143022537 has 2 divisors, whose sum is σ = 22143022538. Its totient is φ = 22143022536.

The previous prime is 22143022487. The next prime is 22143022543. The reversal of 22143022537 is 73522034122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20836633801 + 1306388736 = 144349^2 + 36144^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22143022537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22143022499 and 22143022508.

It is not a weakly prime, because it can be changed into another prime (22143022567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11071511268 + 11071511269.

It is an arithmetic number, because the mean of its divisors is an integer number (11071511269).

Almost surely, 2^22143022537 is an apocalyptic number.

It is an amenable number.

22143022537 is a deficient number, since it is larger than the sum of its proper divisors (1).

22143022537 is an equidigital number, since it uses as much as digits as its factorization.

22143022537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 31.

Adding to 22143022537 its reverse (73522034122), we get a palindrome (95665056659).

The spelling of 22143022537 in words is "twenty-two billion, one hundred forty-three million, twenty-two thousand, five hundred thirty-seven".