12101101121 has 16 divisors (see below), whose sum is σ = 13300459200. Its totient is φ = 10965382848.

The previous prime is 12101101091. The next prime is 12101101141. The reversal of 12101101121 is 12110110121.

It is a cyclic number.

It is not a de Polignac number, because 12101101121 - 2¹⁸ = 12100838977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12101101141) 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, 43670 + ... + 161583.

It is an arithmetic number, because the mean of its divisors is an integer number (831278700).

Almost surely, 2^12101101121 is an apocalyptic number.

It is an amenable number.

12101101121 is a deficient number, since it is larger than the sum of its proper divisors (1199358079).

12101101121 is a wasteful number, since it uses less digits than its factorization.

12101101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205408.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12101101121 its reverse (12110110121), we get a palindrome (24211211242).

The spelling of 12101101121 in words is "twelve billion, one hundred one million, one hundred one thousand, one hundred twenty-one".