221000107 has 2 divisors, whose sum is σ = 221000108. Its totient is φ = 221000106.

The previous prime is 221000071. The next prime is 221000137. The reversal of 221000107 is 701000122.

221000107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (221000071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221000107 - 2⁷ = 220999979 is a prime.

It is a super-2 number, since 2×221000107² = 97682094588022898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221000137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110500053 + 110500054.

It is an arithmetic number, because the mean of its divisors is an integer number (110500054).

Almost surely, 2^221000107 is an apocalyptic number.

221000107 is a deficient number, since it is larger than the sum of its proper divisors (1).

221000107 is an equidigital number, since it uses as much as digits as its factorization.

221000107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 221000107 is about 14866.0723461175. The cubic root of 221000107 is about 604.5944571753.

Adding to 221000107 its reverse (701000122), we get a palindrome (922000229).

The spelling of 221000107 in words is "two hundred twenty-one million, one hundred seven", and thus it is an aban number.