221120111101117 has 2 divisors, whose sum is σ = 221120111101118. Its totient is φ = 221120111101116.

The previous prime is 221120111101081. The next prime is 221120111101199. The reversal of 221120111101117 is 711101111021122.

It is a happy number.

221120111101117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183161955982756 + 37958155118361 = 13533734^2 + 6161019^2 .

It is a cyclic number.

It is not a de Polignac number, because 221120111101117 - 2¹⁵ = 221120111068349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221120111101217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110560055550558 + 110560055550559.

It is an arithmetic number, because the mean of its divisors is an integer number (110560055550559).

Almost surely, 2^{221120111101117} is an apocalyptic number.

It is an amenable number.

221120111101117 is a deficient number, since it is larger than the sum of its proper divisors (1).

221120111101117 is an equidigital number, since it uses as much as digits as its factorization.

221120111101117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 22.

Adding to 221120111101117 its reverse (711101111021122), we get a palindrome (932221222122239).

The spelling of 221120111101117 in words is "two hundred twenty-one trillion, one hundred twenty billion, one hundred eleven million, one hundred one thousand, one hundred seventeen".