12111021211033 has 2 divisors, whose sum is σ = 12111021211034. Its totient is φ = 12111021211032.

The previous prime is 12111021210989. The next prime is 12111021211147. The reversal of 12111021211033 is 33011212011121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8277836757129 + 3833184453904 = 2877123^2 + 1957852^2 .

It is a cyclic number.

It is not a de Polignac number, because 12111021211033 - 2²⁹ = 12110484340121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12111021211033.

It is not a weakly prime, because it can be changed into another prime (12111021511033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055510605516 + 6055510605517.

It is an arithmetic number, because the mean of its divisors is an integer number (6055510605517).

Almost surely, 2^{12111021211033} is an apocalyptic number.

It is an amenable number.

12111021211033 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111021211033 is an equidigital number, since it uses as much as digits as its factorization.

12111021211033 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 19.

Adding to 12111021211033 its reverse (33011212011121), we get a palindrome (45122233222154).

The spelling of 12111021211033 in words is "twelve trillion, one hundred eleven billion, twenty-one million, two hundred eleven thousand, thirty-three".