2012131211 has 4 divisors (see below), whose sum is σ = 2061207624. Its totient is φ = 1963054800.

The previous prime is 2012131183. The next prime is 2012131213. The reversal of 2012131211 is 1121312102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1121312102 = 2 ⋅560656051.

It is a cyclic number.

It is not a de Polignac number, because 2012131211 - 2¹⁰ = 2012130187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012131213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24538145 + ... + 24538226.

It is an arithmetic number, because the mean of its divisors is an integer number (515301906).

Almost surely, 2^2012131211 is an apocalyptic number.

2012131211 is a deficient number, since it is larger than the sum of its proper divisors (49076413).

2012131211 is an equidigital number, since it uses as much as digits as its factorization.

2012131211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49076412.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2012131211 is about 44856.7855624988. The cubic root of 2012131211 is about 1262.4633113672.

Adding to 2012131211 its reverse (1121312102), we get a palindrome (3133443313).

The spelling of 2012131211 in words is "two billion, twelve million, one hundred thirty-one thousand, two hundred eleven".