20222047 has 2 divisors, whose sum is σ = 20222048. Its totient is φ = 20222046.

The previous prime is 20222021. The next prime is 20222063. The reversal of 20222047 is 74022202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20222047 - 2¹⁹ = 19697759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20222087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111023 + 10111024.

It is an arithmetic number, because the mean of its divisors is an integer number (10111024).

Almost surely, 2^20222047 is an apocalyptic number.

20222047 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222047 is an equidigital number, since it uses as much as digits as its factorization.

20222047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 20222047 is about 4496.8930385323. The cubic root of 20222047 is about 272.4426139574.

Adding to 20222047 its reverse (74022202), we get a palindrome (94244249).

The spelling of 20222047 in words is "twenty million, two hundred twenty-two thousand, forty-seven".