212000200221281 has 2 divisors, whose sum is σ = 212000200221282. Its totient is φ = 212000200221280.

The previous prime is 212000200221259. The next prime is 212000200221373. The reversal of 212000200221281 is 182122002000212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211208554056256 + 791646165025 = 14533016^2 + 889745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212000200221281 is a prime.

It is a super-2 number, since 2×212000200221281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212000200271281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106000100110640 + 106000100110641.

It is an arithmetic number, because the mean of its divisors is an integer number (106000100110641).

Almost surely, 2^{212000200221281} is an apocalyptic number.

It is an amenable number.

212000200221281 is a deficient number, since it is larger than the sum of its proper divisors (1).

212000200221281 is an equidigital number, since it uses as much as digits as its factorization.

212000200221281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 212000200221281 its reverse (182122002000212), we get a palindrome (394122202221493).

The spelling of 212000200221281 in words is "two hundred twelve trillion, two hundred million, two hundred twenty-one thousand, two hundred eighty-one".