212022021361 has 2 divisors, whose sum is σ = 212022021362. Its totient is φ = 212022021360.

The previous prime is 212022021313. The next prime is 212022021373. The reversal of 212022021361 is 163120220212.

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., 211191717136 + 830304225 = 459556^2 + 28815^2 .

It is a cyclic number.

It is not a de Polignac number, because 212022021361 - 2⁹ = 212022020849 is a prime.

It is not a weakly prime, because it can be changed into another prime (212022021961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106011010680 + 106011010681.

It is an arithmetic number, because the mean of its divisors is an integer number (106011010681).

Almost surely, 2^212022021361 is an apocalyptic number.

It is an amenable number.

212022021361 is a deficient number, since it is larger than the sum of its proper divisors (1).

212022021361 is an equidigital number, since it uses as much as digits as its factorization.

212022021361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 212022021361 its reverse (163120220212), we get a palindrome (375142241573).

The spelling of 212022021361 in words is "two hundred twelve billion, twenty-two million, twenty-one thousand, three hundred sixty-one".