212001019 has 2 divisors, whose sum is σ = 212001020. Its totient is φ = 212001018.

The previous prime is 212001017. The next prime is 212001059. The reversal of 212001019 is 910100212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212001019 - 2¹ = 212001017 is a prime.

It is a super-2 number, since 2×212001019² = 89888864114076722, which contains 22 as substring.

Together with 212001017, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 212000993 and 212001011.

It is not a weakly prime, because it can be changed into another prime (212001017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106000509 + 106000510.

It is an arithmetic number, because the mean of its divisors is an integer number (106000510).

Almost surely, 2^212001019 is an apocalyptic number.

212001019 is a deficient number, since it is larger than the sum of its proper divisors (1).

212001019 is an equidigital number, since it uses as much as digits as its factorization.

212001019 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 square root of 212001019 is about 14560.2547711227. The cubic root of 212001019 is about 596.2741511225.

The spelling of 212001019 in words is "two hundred twelve million, one thousand, nineteen".