111000211001 has 2 divisors, whose sum is σ = 111000211002. Its totient is φ = 111000211000.

The previous prime is 111000210917. The next prime is 111000211067. The reversal of 111000211001 is 100112000111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105212653225 + 5787557776 = 324365^2 + 76076^2 .

It is a cyclic number.

It is not a de Polignac number, because 111000211001 - 2²² = 110996016697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111000211001.

It is not a weakly prime, because it can be changed into another prime (111000211801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500105500 + 55500105501.

It is an arithmetic number, because the mean of its divisors is an integer number (55500105501).

Almost surely, 2^111000211001 is an apocalyptic number.

It is an amenable number.

111000211001 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000211001 is an equidigital number, since it uses as much as digits as its factorization.

111000211001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 111000211001 its reverse (100112000111), we get a palindrome (211112211112).

The spelling of 111000211001 in words is "one hundred eleven billion, two hundred eleven thousand, one".