221100001207 has 2 divisors, whose sum is σ = 221100001208. Its totient is φ = 221100001206.

The previous prime is 221100001183. The next prime is 221100001219. The reversal of 221100001207 is 702100001122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221100001207 - 2⁷ = 221100001079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221100001267) 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, 110550000603 + 110550000604.

It is an arithmetic number, because the mean of its divisors is an integer number (110550000604).

Almost surely, 2^221100001207 is an apocalyptic number.

221100001207 is a deficient number, since it is larger than the sum of its proper divisors (1).

221100001207 is an equidigital number, since it uses as much as digits as its factorization.

221100001207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 16.

Adding to 221100001207 its reverse (702100001122), we get a palindrome (923200002329).

The spelling of 221100001207 in words is "two hundred twenty-one billion, one hundred million, one thousand, two hundred seven".