211000020019 has 2 divisors, whose sum is σ = 211000020020. Its totient is φ = 211000020018.

The previous prime is 211000020017. The next prime is 211000020041. The reversal of 211000020019 is 910020000112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211000020019 - 2¹ = 211000020017 is a prime.

It is a super-2 number, since 2×211000020019² (a number of 23 digits) contains 22 as substring.

Together with 211000020017, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 211000019984 and 211000020011.

It is not a weakly prime, because it can be changed into another prime (211000020013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105500010009 + 105500010010.

It is an arithmetic number, because the mean of its divisors is an integer number (105500010010).

Almost surely, 2^211000020019 is an apocalyptic number.

211000020019 is a deficient number, since it is larger than the sum of its proper divisors (1).

211000020019 is an equidigital number, since it uses as much as digits as its factorization.

211000020019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 211000020019 in words is "two hundred eleven billion, twenty thousand, nineteen".