22124138 has 4 divisors (see below), whose sum is σ = 33186210. Its totient is φ = 11062068.

The previous prime is 22124131. The next prime is 22124143. The reversal of 22124138 is 83142122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22118209 + 5929 = 4703^2 + 77^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22124131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5531033 + ... + 5531036.

Almost surely, 2^22124138 is an apocalyptic number.

22124138 is a deficient number, since it is larger than the sum of its proper divisors (11062072).

22124138 is a wasteful number, since it uses less digits than its factorization.

22124138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11062071.

The product of its digits is 768, while the sum is 23.

The square root of 22124138 is about 4703.6303000980. The cubic root of 22124138 is about 280.7299745165.

The spelling of 22124138 in words is "twenty-two million, one hundred twenty-four thousand, one hundred thirty-eight".