2233312121021 has 2 divisors, whose sum is σ = 2233312121022. Its totient is φ = 2233312121020.

The previous prime is 2233312120999. The next prime is 2233312121039. The reversal of 2233312121021 is 1201212133322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2139532245796 + 93779875225 = 1462714^2 + 306235^2 .

It is a cyclic number.

It is not a de Polignac number, because 2233312121021 - 2²⁶ = 2233245012157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2233312126021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1116656060510 + 1116656060511.

It is an arithmetic number, because the mean of its divisors is an integer number (1116656060511).

Almost surely, 2^{2233312121021} is an apocalyptic number.

It is an amenable number.

2233312121021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2233312121021 is an equidigital number, since it uses as much as digits as its factorization.

2233312121021 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 2233312121021 its reverse (1201212133322), we get a palindrome (3434524254343).

The spelling of 2233312121021 in words is "two trillion, two hundred thirty-three billion, three hundred twelve million, one hundred twenty-one thousand, twenty-one".