2333220212221 has 2 divisors, whose sum is σ = 2333220212222. Its totient is φ = 2333220212220.

The previous prime is 2333220212207. The next prime is 2333220212227. The reversal of 2333220212221 is 1222120223332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1272857804100 + 1060362408121 = 1128210^2 + 1029739^2 .

It is a cyclic number.

It is not a de Polignac number, because 2333220212221 - 2⁷ = 2333220212093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2333220212227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1166610106110 + 1166610106111.

It is an arithmetic number, because the mean of its divisors is an integer number (1166610106111).

Almost surely, 2^{2333220212221} is an apocalyptic number.

It is an amenable number.

2333220212221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2333220212221 is an equidigital number, since it uses as much as digits as its factorization.

2333220212221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 2333220212221 its reverse (1222120223332), we get a palindrome (3555340435553).

The spelling of 2333220212221 in words is "two trillion, three hundred thirty-three billion, two hundred twenty million, two hundred twelve thousand, two hundred twenty-one".