210210201919 has 2 divisors, whose sum is σ = 210210201920. Its totient is φ = 210210201918.

The previous prime is 210210201853. The next prime is 210210201923. The reversal of 210210201919 is 919102012012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210210201919 - 2⁷ = 210210201791 is a prime.

It is a super-2 number, since 2×210210201919² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210210201959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105105100959 + 105105100960.

It is an arithmetic number, because the mean of its divisors is an integer number (105105100960).

Almost surely, 2^210210201919 is an apocalyptic number.

210210201919 is a deficient number, since it is larger than the sum of its proper divisors (1).

210210201919 is an equidigital number, since it uses as much as digits as its factorization.

210210201919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 210210201919 in words is "two hundred ten billion, two hundred ten million, two hundred one thousand, nine hundred nineteen".