212301132333421 has 2 divisors, whose sum is σ = 212301132333422. Its totient is φ = 212301132333420.

The previous prime is 212301132333397. The next prime is 212301132333449. The reversal of 212301132333421 is 124333231103212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185142557024100 + 27158575309321 = 13606710^2 + 5211389^2 .

It is a cyclic number.

It is not a de Polignac number, because 212301132333421 - 2⁹ = 212301132332909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212301132333481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106150566166710 + 106150566166711.

It is an arithmetic number, because the mean of its divisors is an integer number (106150566166711).

Almost surely, 2^{212301132333421} is an apocalyptic number.

It is an amenable number.

212301132333421 is a deficient number, since it is larger than the sum of its proper divisors (1).

212301132333421 is an equidigital number, since it uses as much as digits as its factorization.

212301132333421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 212301132333421 its reverse (124333231103212), we get a palindrome (336634363436633).

The spelling of 212301132333421 in words is "two hundred twelve trillion, three hundred one billion, one hundred thirty-two million, three hundred thirty-three thousand, four hundred twenty-one".