22211047 has 2 divisors, whose sum is σ = 22211048. Its totient is φ = 22211046.

The previous prime is 22211041. The next prime is 22211051. The reversal of 22211047 is 74011222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22211047 - 2²³ = 13822439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22211041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105523 + 11105524.

It is an arithmetic number, because the mean of its divisors is an integer number (11105524).

Almost surely, 2^22211047 is an apocalyptic number.

22211047 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211047 is an equidigital number, since it uses as much as digits as its factorization.

22211047 is an odious number, because the sum of its binary digits is odd.

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

The square root of 22211047 is about 4712.8597475418. The cubic root of 22211047 is about 281.0970861278.

Adding to 22211047 its reverse (74011222), we get a palindrome (96222269).

The spelling of 22211047 in words is "twenty-two million, two hundred eleven thousand, forty-seven".