111102120201 has 4 divisors (see below), whose sum is σ = 148136160272. Its totient is φ = 74068080132.

The previous prime is 111102120187. The next prime is 111102120343. The reversal of 111102120201 is 102021201111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 111102120201 - 2¹⁸ = 111101858057 is a prime.

It is a super-2 number, since 2×111102120201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111102120001) 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, 18517020031 + ... + 18517020036.

It is an arithmetic number, because the mean of its divisors is an integer number (37034040068).

Almost surely, 2^111102120201 is an apocalyptic number.

It is an amenable number.

111102120201 is a deficient number, since it is larger than the sum of its proper divisors (37034040071).

111102120201 is an equidigital number, since it uses as much as digits as its factorization.

111102120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37034040070.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111102120201 its reverse (102021201111), we get a palindrome (213123321312).

The spelling of 111102120201 in words is "one hundred eleven billion, one hundred two million, one hundred twenty thousand, two hundred one".