12120120201111 has 8 divisors (see below), whose sum is σ = 17403249519600. Its totient is φ = 7458535508352.

The previous prime is 12120120201103. The next prime is 12120120201149. The reversal of 12120120201111 is 11110202102121.

It is a happy number.

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

It is not a de Polignac number, because 12120120201111 - 2³ = 12120120201103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120120201151) 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, 155386156386 + ... + 155386156463.

It is an arithmetic number, because the mean of its divisors is an integer number (2175406189950).

Almost surely, 2^{12120120201111} is an apocalyptic number.

12120120201111 is a deficient number, since it is larger than the sum of its proper divisors (5283129318489).

12120120201111 is a wasteful number, since it uses less digits than its factorization.

12120120201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310772312865.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12120120201111 its reverse (11110202102121), we get a palindrome (23230322303232).

The spelling of 12120120201111 in words is "twelve trillion, one hundred twenty billion, one hundred twenty million, two hundred one thousand, one hundred eleven".