212022021313 has 2 divisors, whose sum is σ = 212022021314. Its totient is φ = 212022021312.

The previous prime is 212022021199. The next prime is 212022021361. The reversal of 212022021313 is 313120220212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142693551504 + 69328469809 = 377748^2 + 263303^2 .

It is a cyclic number.

It is not a de Polignac number, because 212022021313 - 2¹³ = 212022013121 is a prime.

It is not a weakly prime, because it can be changed into another prime (212022021373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106011010656 + 106011010657.

It is an arithmetic number, because the mean of its divisors is an integer number (106011010657).

Almost surely, 2^212022021313 is an apocalyptic number.

It is an amenable number.

212022021313 is a deficient number, since it is larger than the sum of its proper divisors (1).

212022021313 is an equidigital number, since it uses as much as digits as its factorization.

212022021313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212022021313 its reverse (313120220212), we get a palindrome (525142241525).

The spelling of 212022021313 in words is "two hundred twelve billion, twenty-two million, twenty-one thousand, three hundred thirteen".