12011212033 has 2 divisors, whose sum is σ = 12011212034. Its totient is φ = 12011212032.

The previous prime is 12011212019. The next prime is 12011212039. The reversal of 12011212033 is 33021211021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7024451344 + 4986760689 = 83812^2 + 70617^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011212033 - 2⁵ = 12011212001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12011211998 and 12011212016.

It is not a weakly prime, because it can be changed into another prime (12011212039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005606016 + 6005606017.

It is an arithmetic number, because the mean of its divisors is an integer number (6005606017).

Almost surely, 2^12011212033 is an apocalyptic number.

It is an amenable number.

12011212033 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011212033 is an equidigital number, since it uses as much as digits as its factorization.

12011212033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12011212033 its reverse (33021211021), we get a palindrome (45032423054).

The spelling of 12011212033 in words is "twelve billion, eleven million, two hundred twelve thousand, thirty-three".