2001101221019 has 8 divisors (see below), whose sum is σ = 2021435409840. Its totient is φ = 1980813090816.

The previous prime is 2001101220997. The next prime is 2001101221051. The reversal of 2001101221019 is 9101221011002.

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-2001101221019 is a prime.

It is a super-2 number, since 2×2001101221019² (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 (2001101221069) 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, 11427317 + ... + 11601110.

It is an arithmetic number, because the mean of its divisors is an integer number (252679426230).

Almost surely, 2^{2001101221019} is an apocalyptic number.

2001101221019 is a deficient number, since it is larger than the sum of its proper divisors (20334188821).

2001101221019 is a wasteful number, since it uses less digits than its factorization.

2001101221019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23029309.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 2001101221019 in words is "two trillion, one billion, one hundred one million, two hundred twenty-one thousand, nineteen".