201021419 has 2 divisors, whose sum is σ = 201021420. Its totient is φ = 201021418.

The previous prime is 201021367. The next prime is 201021461. The reversal of 201021419 is 914120102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201021419 is a prime.

It is a super-2 number, since 2×201021419² = 80819221793547122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201021419.

It is not a weakly prime, because it can be changed into another prime (201020419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510709 + 100510710.

It is an arithmetic number, because the mean of its divisors is an integer number (100510710).

Almost surely, 2^201021419 is an apocalyptic number.

201021419 is a deficient number, since it is larger than the sum of its proper divisors (1).

201021419 is an equidigital number, since it uses as much as digits as its factorization.

201021419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 201021419 is about 14178.2022485222. The cubic root of 201021419 is about 585.7974067383.

The spelling of 201021419 in words is "two hundred one million, twenty-one thousand, four hundred nineteen".