212211221100007 has 2 divisors, whose sum is σ = 212211221100008. Its totient is φ = 212211221100006.

The previous prime is 212211221100001. The next prime is 212211221100101. The reversal of 212211221100007 is 700001122112212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212211221100007 - 2⁷ = 212211221099879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212211221100001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106105610550003 + 106105610550004.

It is an arithmetic number, because the mean of its divisors is an integer number (106105610550004).

Almost surely, 2^{212211221100007} is an apocalyptic number.

212211221100007 is a deficient number, since it is larger than the sum of its proper divisors (1).

212211221100007 is an equidigital number, since it uses as much as digits as its factorization.

212211221100007 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 22.

Adding to 212211221100007 its reverse (700001122112212), we get a palindrome (912212343212219).

The spelling of 212211221100007 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred twenty-one million, one hundred thousand, seven".