2112331211011 has 4 divisors (see below), whose sum is σ = 2414092812592. Its totient is φ = 1810569609432.

The previous prime is 2112331210949. The next prime is 2112331211069. The reversal of 2112331211011 is 1101121332112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2112331211011 - 2⁷ = 2112331210883 is a prime.

It is a super-2 number, since 2×2112331211011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2112331211011.

It is not an unprimeable number, because it can be changed into a prime (2112331251011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150880800780 + ... + 150880800793.

It is an arithmetic number, because the mean of its divisors is an integer number (603523203148).

Almost surely, 2^{2112331211011} is an apocalyptic number.

2112331211011 is a deficient number, since it is larger than the sum of its proper divisors (301761601581).

2112331211011 is an equidigital number, since it uses as much as digits as its factorization.

2112331211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301761601580.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 2112331211011 its reverse (1101121332112), we get a palindrome (3213452543123).

The spelling of 2112331211011 in words is "two trillion, one hundred twelve billion, three hundred thirty-one million, two hundred eleven thousand, eleven".