2012120212111 has 8 divisors (see below), whose sum is σ = 2022807948624. Its totient is φ = 2001435179520.

The previous prime is 2012120212097. The next prime is 2012120212117. The reversal of 2012120212111 is 1112120212102.

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

It is a cyclic number.

It is not a de Polignac number, because 2012120212111 - 2¹⁵ = 2012120179343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012120212117) 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, 825096 + ... + 2169106.

It is an arithmetic number, because the mean of its divisors is an integer number (252850993578).

Almost surely, 2^{2012120212111} is an apocalyptic number.

2012120212111 is a deficient number, since it is larger than the sum of its proper divisors (10687736513).

2012120212111 is a wasteful number, since it uses less digits than its factorization.

2012120212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351961.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2012120212111 its reverse (1112120212102), we get a palindrome (3124240424213).

Subtracting from 2012120212111 its reverse (1112120212102), we obtain a palindrome (900000000009).

The spelling of 2012120212111 in words is "two trillion, twelve billion, one hundred twenty million, two hundred twelve thousand, one hundred eleven".