22122115537 has 2 divisors, whose sum is σ = 22122115538. Its totient is φ = 22122115536.

The previous prime is 22122115531. The next prime is 22122115577. The reversal of 22122115537 is 73551122122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18366754576 + 3755360961 = 135524^2 + 61281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22122115537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22122115499 and 22122115508.

It is not a weakly prime, because it can be changed into another prime (22122115531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061057768 + 11061057769.

It is an arithmetic number, because the mean of its divisors is an integer number (11061057769).

Almost surely, 2^22122115537 is an apocalyptic number.

It is an amenable number.

22122115537 is a deficient number, since it is larger than the sum of its proper divisors (1).

22122115537 is an equidigital number, since it uses as much as digits as its factorization.

22122115537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 31.

Adding to 22122115537 its reverse (73551122122), we get a palindrome (95673237659).

The spelling of 22122115537 in words is "twenty-two billion, one hundred twenty-two million, one hundred fifteen thousand, five hundred thirty-seven".