22120137 has 12 divisors (see below), whose sum is σ = 34409284. Its totient is φ = 13612320.

The previous prime is 22120099. The next prime is 22120151. The reversal of 22120137 is 73102122.

It can be written as a sum of positive squares in 2 ways, for example, as 3767481 + 18352656 = 1941^2 + 4284^2 .

It is not a de Polignac number, because 22120137 - 2¹⁰ = 22119113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22120187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94414 + ... + 94647.

Almost surely, 2^22120137 is an apocalyptic number.

It is an amenable number.

22120137 is a deficient number, since it is larger than the sum of its proper divisors (12289147).

22120137 is a wasteful number, since it uses less digits than its factorization.

22120137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189080 (or 189077 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 22120137 is about 4703.2049710809. The cubic root of 22120137 is about 280.7130507936.

Adding to 22120137 its reverse (73102122), we get a palindrome (95222259).

The spelling of 22120137 in words is "twenty-two million, one hundred twenty thousand, one hundred thirty-seven".