12121134201 has 12 divisors (see below), whose sum is σ = 19099969200. Its totient is φ = 7346141880.

The previous prime is 12121134187. The next prime is 12121134211. The reversal of 12121134201 is 10243112121.

It is not a de Polignac number, because 12121134201 - 2⁵ = 12121134169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12121134211) 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 11 ways as a sum of consecutive naturals, for example, 61217751 + ... + 61217948.

It is an arithmetic number, because the mean of its divisors is an integer number (1591664100).

Almost surely, 2^12121134201 is an apocalyptic number.

12121134201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12121134201 is a deficient number, since it is larger than the sum of its proper divisors (6978834999).

12121134201 is a wasteful number, since it uses less digits than its factorization.

12121134201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122435716 (or 122435713 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12121134201 its reverse (10243112121), we get a palindrome (22364246322).

The spelling of 12121134201 in words is "twelve billion, one hundred twenty-one million, one hundred thirty-four thousand, two hundred one".