2021132219 has 2 divisors, whose sum is σ = 2021132220. Its totient is φ = 2021132218.

The previous prime is 2021132209. The next prime is 2021132231. The reversal of 2021132219 is 9122311202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021132219 - 2⁸ = 2021131963 is a prime.

It is a super-2 number, since 2×2021132219² = 8169950893359727922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021132194 and 2021132203.

It is not a weakly prime, because it can be changed into another prime (2021132209) 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, 1010566109 + 1010566110.

It is an arithmetic number, because the mean of its divisors is an integer number (1010566110).

Almost surely, 2^2021132219 is an apocalyptic number.

2021132219 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021132219 is an equidigital number, since it uses as much as digits as its factorization.

2021132219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2021132219 is about 44957.0041150431. The cubic root of 2021132219 is about 1264.3429999272.

The spelling of 2021132219 in words is "two billion, twenty-one million, one hundred thirty-two thousand, two hundred nineteen".