111210001201 has 4 divisors (see below), whose sum is σ = 119764616692. Its totient is φ = 102655385712.

The previous prime is 111210001169. The next prime is 111210001207. The reversal of 111210001201 is 102100012111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5975290000 + 105234711201 = 77300^2 + 324399^2 .

It is a cyclic number.

It is not a de Polignac number, because 111210001201 - 2⁵ = 111210001169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111210001207) 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 in 3 ways as a sum of consecutive naturals, for example, 4277307726 + ... + 4277307751.

It is an arithmetic number, because the mean of its divisors is an integer number (29941154173).

Almost surely, 2^111210001201 is an apocalyptic number.

It is an amenable number.

111210001201 is a deficient number, since it is larger than the sum of its proper divisors (8554615491).

111210001201 is an equidigital number, since it uses as much as digits as its factorization.

111210001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8554615490.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111210001201 its reverse (102100012111), we get a palindrome (213310013312).

The spelling of 111210001201 in words is "one hundred eleven billion, two hundred ten million, one thousand, two hundred one".