12021231310011 has 144 divisors (see below), whose sum is σ = 22126473550272. Its totient is φ = 6155061073920.

The previous prime is 12021231309883. The next prime is 12021231310013. The reversal of 12021231310011 is 11001313212021.

12021231310011 is a `hidden beast` number, since 120 + 2 + 1 + 231 + 310 + 0 + 1 + 1 = 666.

It is not a de Polignac number, because 12021231310011 - 2⁷ = 12021231309883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12021231310013) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 922079185 + ... + 922092221.

Almost surely, 2^{12021231310011} is an apocalyptic number.

12021231310011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12021231310011 is a deficient number, since it is larger than the sum of its proper divisors (10105242240261).

12021231310011 is a wasteful number, since it uses less digits than its factorization.

12021231310011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14802 (or 14788 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 12021231310011 its reverse (11001313212021), we get a palindrome (23022544522032).

The spelling of 12021231310011 in words is "twelve trillion, twenty-one billion, two hundred thirty-one million, three hundred ten thousand, eleven".