12011121212120 has 16 divisors (see below), whose sum is σ = 27025022727360. Its totient is φ = 4804448484832.

The previous prime is 12011121212107. The next prime is 12011121212161. The reversal of 12011121212120 is 2121212111021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150139015112 + ... + 150139015191.

It is an arithmetic number, because the mean of its divisors is an integer number (1689063920460).

Almost surely, 2^{12011121212120} is an apocalyptic number.

12011121212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011121212120 is an abundant number, since it is smaller than the sum of its proper divisors (15013901515240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12011121212120 is a wasteful number, since it uses less digits than its factorization.

12011121212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300278030314 (or 300278030310 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12011121212120 its reverse (2121212111021), we get a palindrome (14132333323141).

The spelling of 12011121212120 in words is "twelve trillion, eleven billion, one hundred twenty-one million, two hundred twelve thousand, one hundred twenty".