201019219 has 4 divisors (see below), whose sum is σ = 201459544. Its totient is φ = 200578896.

The previous prime is 201019207. The next prime is 201019249. The reversal of 201019219 is 912910102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201019219 - 2¹⁵ = 200986451 is a prime.

It is a super-2 number, since 2×201019219² = 80817452814739922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201019193 and 201019202.

It is not an unprimeable number, because it can be changed into a prime (201019249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219477 + ... + 220390.

It is an arithmetic number, because the mean of its divisors is an integer number (50364886).

Almost surely, 2^201019219 is an apocalyptic number.

201019219 is a deficient number, since it is larger than the sum of its proper divisors (440325).

201019219 is an equidigital number, since it uses as much as digits as its factorization.

201019219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440324.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 201019219 is about 14178.1246644258. The cubic root of 201019219 is about 585.7952697206.

The spelling of 201019219 in words is "two hundred one million, nineteen thousand, two hundred nineteen".