2001112122019 has 4 divisors (see below), whose sum is σ = 2009700586296. Its totient is φ = 1992523657744.

The previous prime is 2001112122011. The next prime is 2001112122143. The reversal of 2001112122019 is 9102212111002.

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 2001112122019 - 2³ = 2001112122011 is a prime.

It is a super-2 number, since 2×2001112122019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001112122011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4294231789 + ... + 4294232254.

It is an arithmetic number, because the mean of its divisors is an integer number (502425146574).

Almost surely, 2^{2001112122019} is an apocalyptic number.

2001112122019 is a deficient number, since it is larger than the sum of its proper divisors (8588464277).

2001112122019 is an equidigital number, since it uses as much as digits as its factorization.

2001112122019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8588464276.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 2001112122019 in words is "two trillion, one billion, one hundred twelve million, one hundred twenty-two thousand, nineteen".