212000203232281 has 2 divisors, whose sum is σ = 212000203232282. Its totient is φ = 212000203232280.

The previous prime is 212000203232273. The next prime is 212000203232353. The reversal of 212000203232281 is 182232302000212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140211270295056 + 71788932937225 = 11841084^2 + 8472835^2 .

It is a cyclic number.

It is not a de Polignac number, because 212000203232281 - 2³ = 212000203232273 is a prime.

It is a super-2 number, since 2×212000203232281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212000203232221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106000101616140 + 106000101616141.

It is an arithmetic number, because the mean of its divisors is an integer number (106000101616141).

Almost surely, 2^{212000203232281} is an apocalyptic number.

It is an amenable number.

212000203232281 is a deficient number, since it is larger than the sum of its proper divisors (1).

212000203232281 is an equidigital number, since it uses as much as digits as its factorization.

212000203232281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 212000203232281 its reverse (182232302000212), we get a palindrome (394232505232493).

The spelling of 212000203232281 in words is "two hundred twelve trillion, two hundred three million, two hundred thirty-two thousand, two hundred eighty-one".