111110121211201 has 16 divisors (see below), whose sum is σ = 133666623861760. Its totient is φ = 90224549056080.

The previous prime is 111110121211181. The next prime is 111110121211231. The reversal of 111110121211201 is 102112121011111.

It is a cyclic number.

It is not a de Polignac number, because 111110121211201 - 2⁵ = 111110121211169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111110121211231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83385286 + ... + 84707296.

It is an arithmetic number, because the mean of its divisors is an integer number (8354163991360).

Almost surely, 2^{111110121211201} is an apocalyptic number.

It is an amenable number.

111110121211201 is a deficient number, since it is larger than the sum of its proper divisors (22556502650559).

111110121211201 is a wasteful number, since it uses less digits than its factorization.

111110121211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953964.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 111110121211201 its reverse (102112121011111), we get a palindrome (213222242222312).

The spelling of 111110121211201 in words is "one hundred eleven trillion, one hundred ten billion, one hundred twenty-one million, two hundred eleven thousand, two hundred one".