22001207 has 2 divisors, whose sum is σ = 22001208. Its totient is φ = 22001206.

The previous prime is 22001197. The next prime is 22001209. The reversal of 22001207 is 70210022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22001207 - 2⁶ = 22001143 is a prime.

Together with 22001209, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22001191 and 22001200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22001209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000603 + 11000604.

It is an arithmetic number, because the mean of its divisors is an integer number (11000604).

Almost surely, 2^22001207 is an apocalyptic number.

22001207 is a deficient number, since it is larger than the sum of its proper divisors (1).

22001207 is an equidigital number, since it uses as much as digits as its factorization.

22001207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 22001207 is about 4690.5444246910. The cubic root of 22001207 is about 280.2090573074.

Adding to 22001207 its reverse (70210022), we get a palindrome (92211229).

The spelling of 22001207 in words is "twenty-two million, one thousand, two hundred seven".