210210302212321 has 2 divisors, whose sum is σ = 210210302212322. Its totient is φ = 210210302212320.

The previous prime is 210210302212307. The next prime is 210210302212363. The reversal of 210210302212321 is 123212203012012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159964037040721 + 50246265171600 = 12647689^2 + 7088460^2 .

It is a cyclic number.

It is not a de Polignac number, because 210210302212321 - 2⁷ = 210210302212193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210210302212292 and 210210302212301.

It is not a weakly prime, because it can be changed into another prime (210210302212121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105105151106160 + 105105151106161.

It is an arithmetic number, because the mean of its divisors is an integer number (105105151106161).

Almost surely, 2^{210210302212321} is an apocalyptic number.

It is an amenable number.

210210302212321 is a deficient number, since it is larger than the sum of its proper divisors (1).

210210302212321 is an equidigital number, since it uses as much as digits as its factorization.

210210302212321 is an evil number, because the sum of its binary digits is even.

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

Adding to 210210302212321 its reverse (123212203012012), we get a palindrome (333422505224333).

The spelling of 210210302212321 in words is "two hundred ten trillion, two hundred ten billion, three hundred two million, two hundred twelve thousand, three hundred twenty-one".