2012121011 has 2 divisors, whose sum is σ = 2012121012. Its totient is φ = 2012121010.

The previous prime is 2012120987. The next prime is 2012121017. The reversal of 2012121011 is 1101212102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012121011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012120983 and 2012121001.

It is not a weakly prime, because it can be changed into another prime (2012121017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006060505 + 1006060506.

It is an arithmetic number, because the mean of its divisors is an integer number (1006060506).

Almost surely, 2^2012121011 is an apocalyptic number.

2012121011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012121011 is an equidigital number, since it uses as much as digits as its factorization.

2012121011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2012121011 is about 44856.6718671816. The cubic root of 2012121011 is about 1262.4611781155.

Adding to 2012121011 its reverse (1101212102), we get a palindrome (3113333113).

It can be divided in two parts, 201212101 and 1, that added together give a palindrome (201212102).

The spelling of 2012121011 in words is "two billion, twelve million, one hundred twenty-one thousand, eleven".