4021111117 has 2 divisors, whose sum is σ = 4021111118. Its totient is φ = 4021111116.

The previous prime is 4021111109. The next prime is 4021111267. The reversal of 4021111117 is 7111111204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2786361796 + 1234749321 = 52786^2 + 35139^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021111117 - 2³ = 4021111109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4021111094 and 4021111103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4021111517) 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, 2010555558 + 2010555559.

It is an arithmetic number, because the mean of its divisors is an integer number (2010555559).

Almost surely, 2^4021111117 is an apocalyptic number.

It is an amenable number.

4021111117 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021111117 is an equidigital number, since it uses as much as digits as its factorization.

4021111117 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 19.

The square root of 4021111117 is about 63412.2316040052. The cubic root of 4021111117 is about 1590.1888041028.

The spelling of 4021111117 in words is "four billion, twenty-one million, one hundred eleven thousand, one hundred seventeen".