22122115637 has 2 divisors, whose sum is σ = 22122115638. Its totient is φ = 22122115636.

The previous prime is 22122115597. The next prime is 22122115643. The reversal of 22122115637 is 73651122122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21524117521 + 597998116 = 146711^2 + 24454^2 .

It is a cyclic number.

It is not a de Polignac number, because 22122115637 - 2⁸ = 22122115381 is a prime.

It is a super-3 number, since 3×22122115637³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22122115537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061057818 + 11061057819.

It is an arithmetic number, because the mean of its divisors is an integer number (11061057819).

Almost surely, 2^22122115637 is an apocalyptic number.

It is an amenable number.

22122115637 is a deficient number, since it is larger than the sum of its proper divisors (1).

22122115637 is an equidigital number, since it uses as much as digits as its factorization.

22122115637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 32.

Adding to 22122115637 its reverse (73651122122), we get a palindrome (95773237759).

The spelling of 22122115637 in words is "twenty-two billion, one hundred twenty-two million, one hundred fifteen thousand, six hundred thirty-seven".