221200011127 has 2 divisors, whose sum is σ = 221200011128. Its totient is φ = 221200011126.

The previous prime is 221200011089. The next prime is 221200011157. The reversal of 221200011127 is 721110002122.

221200011127 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221200011127 - 2¹⁵ = 221199978359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221200011157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110600005563 + 110600005564.

It is an arithmetic number, because the mean of its divisors is an integer number (110600005564).

Almost surely, 2^221200011127 is an apocalyptic number.

221200011127 is a deficient number, since it is larger than the sum of its proper divisors (1).

221200011127 is an equidigital number, since it uses as much as digits as its factorization.

221200011127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 221200011127 its reverse (721110002122), we get a palindrome (942310013249).

The spelling of 221200011127 in words is "two hundred twenty-one billion, two hundred million, eleven thousand, one hundred twenty-seven".