2021001102019 has 8 divisors (see below), whose sum is σ = 2052094888592. Its totient is φ = 1989999446400.

The previous prime is 2021001102011. The next prime is 2021001102041. The reversal of 2021001102019 is 9102011001202.

It is a happy number.

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 2021001102019 - 2³ = 2021001102011 is a prime.

It is a super-2 number, since 2×2021001102019² (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 = 2021001101987 and 2021001102005.

It is not an unprimeable number, because it can be changed into a prime (2021001102011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22988529 + ... + 23076274.

It is an arithmetic number, because the mean of its divisors is an integer number (256511861074).

Almost surely, 2^{2021001102019} is an apocalyptic number.

2021001102019 is a deficient number, since it is larger than the sum of its proper divisors (31093786573).

2021001102019 is an equidigital number, since it uses as much as digits as its factorization.

2021001102019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46065477.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 2021001102019 in words is "two trillion, twenty-one billion, one million, one hundred two thousand, nineteen".