2331011121212 has 24 divisors (see below), whose sum is σ = 4081176637440. Its totient is φ = 1164960797760.

The previous prime is 2331011121163. The next prime is 2331011121217. The reversal of 2331011121212 is 2121211101332.

It is a super-2 number, since 2×2331011121212² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331011121217) 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 7 ways as a sum of consecutive naturals, for example, 87234878 + ... + 87261594.

It is an arithmetic number, because the mean of its divisors is an integer number (170049026560).

Almost surely, 2^{2331011121212} is an apocalyptic number.

It is an amenable number.

2331011121212 is a deficient number, since it is larger than the sum of its proper divisors (1750165516228).

2331011121212 is a wasteful number, since it uses less digits than its factorization.

2331011121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36101 (or 36099 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 2331011121212 its reverse (2121211101332), we get a palindrome (4452222222544).

The spelling of 2331011121212 in words is "two trillion, three hundred thirty-one billion, eleven million, one hundred twenty-one thousand, two hundred twelve".