2021221000219 has 8 divisors (see below), whose sum is σ = 2025464082320. Its totient is φ = 2016979919136.

The previous prime is 2021221000151. The next prime is 2021221000223. The reversal of 2021221000219 is 9120001221202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2021221000219 - 2²⁵ = 2021187445787 is a prime.

It is a super-2 number, since 2×2021221000219² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021221000219.

It is not an unprimeable number, because it can be changed into a prime (2021221000289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1530697 + ... + 2526949.

It is an arithmetic number, because the mean of its divisors is an integer number (253183010290).

Almost surely, 2^{2021221000219} is an apocalyptic number.

2021221000219 is a deficient number, since it is larger than the sum of its proper divisors (4243082101).

2021221000219 is an equidigital number, since it uses as much as digits as its factorization.

2021221000219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000509.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 2021221000219 in words is "two trillion, twenty-one billion, two hundred twenty-one million, two hundred nineteen", and thus it is an aban number.