12011223233021 has 2 divisors, whose sum is σ = 12011223233022. Its totient is φ = 12011223233020.

The previous prime is 12011223232963. The next prime is 12011223233041. The reversal of 12011223233021 is 12033232211021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11278084857796 + 733138375225 = 3358286^2 + 856235^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011223233021 - 2¹⁴ = 12011223216637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011223233041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005611616510 + 6005611616511.

It is an arithmetic number, because the mean of its divisors is an integer number (6005611616511).

Almost surely, 2^{12011223233021} is an apocalyptic number.

It is an amenable number.

12011223233021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011223233021 is an equidigital number, since it uses as much as digits as its factorization.

12011223233021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12011223233021 its reverse (12033232211021), we get a palindrome (24044455444042).

The spelling of 12011223233021 in words is "twelve trillion, eleven billion, two hundred twenty-three million, two hundred thirty-three thousand, twenty-one".