2021001122219 has 8 divisors (see below), whose sum is σ = 2064374581248. Its totient is φ = 1977643223080.

The previous prime is 2021001122183. The next prime is 2021001122237. The reversal of 2021001122219 is 9122211001202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021001122219 is a prime.

It is a super-2 number, since 2×2021001122219² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021001122194 and 2021001122203.

It is not an unprimeable number, because it can be changed into a prime (2021001182219) 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, 3627227 + ... + 4147140.

It is an arithmetic number, because the mean of its divisors is an integer number (258046822656).

Almost surely, 2^{2021001122219} is an apocalyptic number.

2021001122219 is a deficient number, since it is larger than the sum of its proper divisors (43373459029).

2021001122219 is an equidigital number, since it uses as much as digits as its factorization.

2021001122219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7779945.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 2021001122219 in words is "two trillion, twenty-one billion, one million, one hundred twenty-two thousand, two hundred nineteen".