2002001111197 has 4 divisors (see below), whose sum is σ = 2009443494780. Its totient is φ = 1994558727616.

The previous prime is 2002001111183. The next prime is 2002001111221. The reversal of 2002001111197 is 7911111002002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 183133499481 + 1818867611716 = 427941^2 + 1348654^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002001111197 - 2³¹ = 1999853627549 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 (2002001111147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3721191388 + ... + 3721191925.

It is an arithmetic number, because the mean of its divisors is an integer number (502360873695).

Almost surely, 2^{2002001111197} is an apocalyptic number.

It is an amenable number.

2002001111197 is a deficient number, since it is larger than the sum of its proper divisors (7442383583).

2002001111197 is an equidigital number, since it uses as much as digits as its factorization.

2002001111197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7442383582.

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

Adding to 2002001111197 its reverse (7911111002002), we get a palindrome (9913112113199).

The spelling of 2002001111197 in words is "two trillion, two billion, one million, one hundred eleven thousand, one hundred ninety-seven".