2021001101 has 24 divisors (see below), whose sum is σ = 2452786560. Its totient is φ = 1630946016.

The previous prime is 2021001091. The next prime is 2021001109. The reversal of 2021001101 is 1011001202.

It is not a de Polignac number, because 2021001101 - 2²² = 2016806797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021001109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 419615 + ... + 424403.

It is an arithmetic number, because the mean of its divisors is an integer number (102199440).

Almost surely, 2^2021001101 is an apocalyptic number.

It is an amenable number.

2021001101 is a deficient number, since it is larger than the sum of its proper divisors (431785459).

2021001101 is a wasteful number, since it uses less digits than its factorization.

2021001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001 (or 4982 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 2021001101 is about 44955.5458314099. The cubic root of 2021001101 is about 1264.3156585342.

Adding to 2021001101 its reverse (1011001202), we get a palindrome (3032002303).

The spelling of 2021001101 in words is "two billion, twenty-one million, one thousand, one hundred one".