22123037 has 4 divisors (see below), whose sum is σ = 22132476. Its totient is φ = 22113600.

The previous prime is 22123021. The next prime is 22123043. The reversal of 22123037 is 73032122.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 89401 + 22033636 = 299^2 + 4694^2 .

It is a cyclic number.

It is not a de Polignac number, because 22123037 - 2⁴ = 22123021 is a prime.

It is a super-2 number, since 2×22123037² = 978857532206738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123097) 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 3 ways as a sum of consecutive naturals, for example, 1787 + ... + 6887.

It is an arithmetic number, because the mean of its divisors is an integer number (5533119).

Almost surely, 2^22123037 is an apocalyptic number.

It is an amenable number.

22123037 is a deficient number, since it is larger than the sum of its proper divisors (9439).

22123037 is an equidigital number, since it uses as much as digits as its factorization.

22123037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9438.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 22123037 is about 4703.5132613824. The cubic root of 22123037 is about 280.7253176295.

Adding to 22123037 its reverse (73032122), we get a palindrome (95155159).

The spelling of 22123037 in words is "twenty-two million, one hundred twenty-three thousand, thirty-seven".