12042120211 has 8 divisors (see below), whose sum is σ = 13137729984. Its totient is φ = 10946655720.

The previous prime is 12042120199. The next prime is 12042120229. The reversal of 12042120211 is 11202124021.

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

It is not a de Polignac number, because 12042120211 - 2⁹ = 12042119699 is a prime.

It is a super-3 number, since 3×12042120211³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12042120241) 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, 209176 + ... + 260458.

It is an arithmetic number, because the mean of its divisors is an integer number (1642216248).

Almost surely, 2^12042120211 is an apocalyptic number.

12042120211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12042120211 is a deficient number, since it is larger than the sum of its proper divisors (1095609773).

12042120211 is a wasteful number, since it uses less digits than its factorization.

12042120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72641.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12042120211 its reverse (11202124021), we get a palindrome (23244244232).

The spelling of 12042120211 in words is "twelve billion, forty-two million, one hundred twenty thousand, two hundred eleven".