212022303257 has 2 divisors, whose sum is σ = 212022303258. Its totient is φ = 212022303256.

The previous prime is 212022303197. The next prime is 212022303293. The reversal of 212022303257 is 752303220212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194243814361 + 17778488896 = 440731^2 + 133336^2 .

It is a cyclic number.

It is not a de Polignac number, because 212022303257 - 2¹⁴ = 212022286873 is a prime.

It is not a weakly prime, because it can be changed into another prime (212022300257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106011151628 + 106011151629.

It is an arithmetic number, because the mean of its divisors is an integer number (106011151629).

Almost surely, 2^212022303257 is an apocalyptic number.

It is an amenable number.

212022303257 is a deficient number, since it is larger than the sum of its proper divisors (1).

212022303257 is an equidigital number, since it uses as much as digits as its factorization.

212022303257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 29.

Adding to 212022303257 its reverse (752303220212), we get a palindrome (964325523469).

The spelling of 212022303257 in words is "two hundred twelve billion, twenty-two million, three hundred three thousand, two hundred fifty-seven".