212022021373 has 2 divisors, whose sum is σ = 212022021374. Its totient is φ = 212022021372.

The previous prime is 212022021361. The next prime is 212022021401. The reversal of 212022021373 is 373120220212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118592763129 + 93429258244 = 344373^2 + 305662^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212022021373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212022021313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106011010686 + 106011010687.

It is an arithmetic number, because the mean of its divisors is an integer number (106011010687).

Almost surely, 2^212022021373 is an apocalyptic number.

It is an amenable number.

212022021373 is a deficient number, since it is larger than the sum of its proper divisors (1).

212022021373 is an equidigital number, since it uses as much as digits as its factorization.

212022021373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 212022021373 its reverse (373120220212), we get a palindrome (585142241585).

The spelling of 212022021373 in words is "two hundred twelve billion, twenty-two million, twenty-one thousand, three hundred seventy-three".