2132312022221 has 2 divisors, whose sum is σ = 2132312022222. Its totient is φ = 2132312022220.

The previous prime is 2132312022187. The next prime is 2132312022227. The reversal of 2132312022221 is 1222202132312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1456728302500 + 675583719721 = 1206950^2 + 821939^2 .

It is a cyclic number.

It is not a de Polignac number, because 2132312022221 - 2⁶ = 2132312022157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2132312022227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066156011110 + 1066156011111.

It is an arithmetic number, because the mean of its divisors is an integer number (1066156011111).

Almost surely, 2^{2132312022221} is an apocalyptic number.

It is an amenable number.

2132312022221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132312022221 is an equidigital number, since it uses as much as digits as its factorization.

2132312022221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 2132312022221 its reverse (1222202132312), we get a palindrome (3354514154533).

The spelling of 2132312022221 in words is "two trillion, one hundred thirty-two billion, three hundred twelve million, twenty-two thousand, two hundred twenty-one".