22051147 has 2 divisors, whose sum is σ = 22051148. Its totient is φ = 22051146.

The previous prime is 22051123. The next prime is 22051171. The reversal of 22051147 is 74115022.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (22051123) and next prime (22051171).

It is a cyclic number.

It is not a de Polignac number, because 22051147 - 2⁷ = 22051019 is a prime.

It is not a weakly prime, because it can be changed into another prime (22051177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11025573 + 11025574.

It is an arithmetic number, because the mean of its divisors is an integer number (11025574).

Almost surely, 2^22051147 is an apocalyptic number.

22051147 is a deficient number, since it is larger than the sum of its proper divisors (1).

22051147 is an equidigital number, since it uses as much as digits as its factorization.

22051147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 22051147 is about 4695.8648830647. The cubic root of 22051147 is about 280.4209103164.

Adding to 22051147 its reverse (74115022), we get a palindrome (96166169).

The spelling of 22051147 in words is "twenty-two million, fifty-one thousand, one hundred forty-seven".