111001201 has 2 divisors, whose sum is σ = 111001202. Its totient is φ = 111001200.

The previous prime is 111001199. The next prime is 111001213. The reversal of 111001201 is 102100111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56610576 + 54390625 = 7524^2 + 7375^2 .

It is an emirp because it is prime and its reverse (102100111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111001201 - 2¹ = 111001199 is a prime.

It is a super-4 number, since 4×111001201⁴ (a number of 33 digits) contains 4444 as substring.

Together with 111001199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (111001001) 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, 55500600 + 55500601.

It is an arithmetic number, because the mean of its divisors is an integer number (55500601).

Almost surely, 2^111001201 is an apocalyptic number.

It is an amenable number.

111001201 is a deficient number, since it is larger than the sum of its proper divisors (1).

111001201 is an equidigital number, since it uses as much as digits as its factorization.

111001201 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 7.

The square root of 111001201 is about 10535.7107496362. The cubic root of 111001201 is about 480.5912866617.

Adding to 111001201 its reverse (102100111), we get a palindrome (213101312).

The spelling of 111001201 in words is "one hundred eleven million, one thousand, two hundred one".