22112047 has 4 divisors (see below), whose sum is σ = 22260600. Its totient is φ = 21963496.

The previous prime is 22112033. The next prime is 22112063. The reversal of 22112047 is 74021122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22112047 - 2¹⁹ = 21587759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74053 + ... + 74350.

It is an arithmetic number, because the mean of its divisors is an integer number (5565150).

Almost surely, 2^22112047 is an apocalyptic number.

22112047 is a deficient number, since it is larger than the sum of its proper divisors (148553).

22112047 is a wasteful number, since it uses less digits than its factorization.

22112047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148552.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 22112047 is about 4702.3448406088. The cubic root of 22112047 is about 280.6788248830.

Adding to 22112047 its reverse (74021122), we get a palindrome (96133169).

The spelling of 22112047 in words is "twenty-two million, one hundred twelve thousand, forty-seven".