12101201121 has 8 divisors (see below), whose sum is σ = 16135445664. Its totient is φ = 8067212000.

The previous prime is 12101201087. The next prime is 12101201131. The reversal of 12101201121 is 12110210121.

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 12101201121 - 2⁹ = 12101200609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12101201097 and 12101201106.

It is not an unprimeable number, because it can be changed into a prime (12101201131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136525 + ... + 206981.

It is an arithmetic number, because the mean of its divisors is an integer number (2016930708).

Almost surely, 2^12101201121 is an apocalyptic number.

It is an amenable number.

12101201121 is a deficient number, since it is larger than the sum of its proper divisors (4034244543).

12101201121 is an equidigital number, since it uses as much as digits as its factorization.

12101201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127711.

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

Adding to 12101201121 its reverse (12110210121), we get a palindrome (24211411242).

The spelling of 12101201121 in words is "twelve billion, one hundred one million, two hundred one thousand, one hundred twenty-one".