233212333021 has 2 divisors, whose sum is σ = 233212333022. Its totient is φ = 233212333020.

The previous prime is 233212332919. The next prime is 233212333031. The reversal of 233212333021 is 120333212332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183407484121 + 49804848900 = 428261^2 + 223170^2 .

It is a cyclic number.

It is not a de Polignac number, because 233212333021 - 2²⁷ = 233078115293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233212333031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116606166510 + 116606166511.

It is an arithmetic number, because the mean of its divisors is an integer number (116606166511).

Almost surely, 2^233212333021 is an apocalyptic number.

It is an amenable number.

233212333021 is a deficient number, since it is larger than the sum of its proper divisors (1).

233212333021 is an equidigital number, since it uses as much as digits as its factorization.

233212333021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 233212333021 its reverse (120333212332), we get a palindrome (353545545353).

The spelling of 233212333021 in words is "two hundred thirty-three billion, two hundred twelve million, three hundred thirty-three thousand, twenty-one".