21212110303259 has 2 divisors, whose sum is σ = 21212110303260. Its totient is φ = 21212110303258.

The previous prime is 21212110303231. The next prime is 21212110303261. The reversal of 21212110303259 is 95230301121212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21212110303259 - 2⁴⁴ = 3619924258843 is a prime.

It is a super-3 number, since 3×21212110303259³ (a number of 41 digits) contains 333 as substring.

Together with 21212110303261, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (21212110303229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10606055151629 + 10606055151630.

It is an arithmetic number, because the mean of its divisors is an integer number (10606055151630).

Almost surely, 2^{21212110303259} is an apocalyptic number.

21212110303259 is a deficient number, since it is larger than the sum of its proper divisors (1).

21212110303259 is an equidigital number, since it uses as much as digits as its factorization.

21212110303259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 21212110303259 in words is "twenty-one trillion, two hundred twelve billion, one hundred ten million, three hundred three thousand, two hundred fifty-nine".