22211221012207 has 2 divisors, whose sum is σ = 22211221012208. Its totient is φ = 22211221012206.

The previous prime is 22211221012151. The next prime is 22211221012213. The reversal of 22211221012207 is 70221012211222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22211221012207 - 2¹⁹ = 22211220487919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22211221012507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105610506103 + 11105610506104.

It is an arithmetic number, because the mean of its divisors is an integer number (11105610506104).

Almost surely, 2^{22211221012207} is an apocalyptic number.

22211221012207 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211221012207 is an equidigital number, since it uses as much as digits as its factorization.

22211221012207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 22211221012207 its reverse (70221012211222), we get a palindrome (92432233223429).

The spelling of 22211221012207 in words is "twenty-two trillion, two hundred eleven billion, two hundred twenty-one million, twelve thousand, two hundred seven".