2021001001197 has 32 divisors (see below), whose sum is σ = 2780312394624. Its totient is φ = 1304851680000.

The previous prime is 2021001001177. The next prime is 2021001001219. The reversal of 2021001001197 is 7911001001202.

It is not a de Polignac number, because 2021001001197 - 2¹⁶ = 2021000935661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021001001157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204115947 + ... + 204125847.

It is an arithmetic number, because the mean of its divisors is an integer number (86884762332).

Almost surely, 2^{2021001001197} is an apocalyptic number.

It is an amenable number.

2021001001197 is a deficient number, since it is larger than the sum of its proper divisors (759311393427).

2021001001197 is a wasteful number, since it uses less digits than its factorization.

2021001001197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18269.

The product of its (nonzero) digits is 252, while the sum is 24.

Adding to 2021001001197 its reverse (7911001001202), we get a palindrome (9932002002399).

The spelling of 2021001001197 in words is "two trillion, twenty-one billion, one million, one thousand, one hundred ninety-seven".