111201121121011 has 8 divisors (see below), whose sum is σ = 117816931246320. Its totient is φ = 104593596296448.

The previous prime is 111201121121003. The next prime is 111201121121053. The reversal of 111201121121011 is 110121121102111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111201121121011 - 2³ = 111201121121003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111201121121611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2071297546 + ... + 2071351231.

It is an arithmetic number, because the mean of its divisors is an integer number (14727116405790).

Almost surely, 2^{111201121121011} is an apocalyptic number.

111201121121011 is a deficient number, since it is larger than the sum of its proper divisors (6615810125309).

111201121121011 is a wasteful number, since it uses less digits than its factorization.

111201121121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4142650373.

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

Adding to 111201121121011 its reverse (110121121102111), we get a palindrome (221322242223122).

The spelling of 111201121121011 in words is "one hundred eleven trillion, two hundred one billion, one hundred twenty-one million, one hundred twenty-one thousand, eleven".