22122147 has 8 divisors (see below), whose sum is σ = 30052944. Its totient is φ = 14469728.

The previous prime is 22122103. The next prime is 22122169. The reversal of 22122147 is 74122122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22122147 - 2¹¹ = 22120099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22122047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69408 + ... + 69725.

It is an arithmetic number, because the mean of its divisors is an integer number (3756618).

Almost surely, 2^22122147 is an apocalyptic number.

22122147 is a deficient number, since it is larger than the sum of its proper divisors (7930797).

22122147 is a wasteful number, since it uses less digits than its factorization.

22122147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139189.

The product of its digits is 448, while the sum is 21.

The square root of 22122147 is about 4703.4186503011. The cubic root of 22122147 is about 280.7215530939.

Adding to 22122147 its reverse (74122122), we get a palindrome (96244269).

The spelling of 22122147 in words is "twenty-two million, one hundred twenty-two thousand, one hundred forty-seven".