2000021111197 has 8 divisors (see below), whose sum is σ = 2019559845816. Its totient is φ = 1980514647552.

The previous prime is 2000021111141. The next prime is 2000021111219. The reversal of 2000021111197 is 7911111200002.

It can be written as a sum of positive squares in 4 ways, for example, as 36138390201 + 1963882720996 = 190101^2 + 1401386^2 .

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-2000021111197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000021111497) 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, 7943178 + ... + 8191099.

It is an arithmetic number, because the mean of its divisors is an integer number (252444980727).

Almost surely, 2^{2000021111197} is an apocalyptic number.

It is an amenable number.

2000021111197 is a deficient number, since it is larger than the sum of its proper divisors (19538734619).

2000021111197 is a wasteful number, since it uses less digits than its factorization.

2000021111197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16135487.

The product of its (nonzero) digits is 252, while the sum is 25.

Adding to 2000021111197 its reverse (7911111200002), we get a palindrome (9911132311199).

The spelling of 2000021111197 in words is "two trillion, twenty-one million, one hundred eleven thousand, one hundred ninety-seven".