2000022197 has 4 divisors (see below), whose sum is σ = 2001082860. Its totient is φ = 1998961536.

The previous prime is 2000022187. The next prime is 2000022203. The reversal of 2000022197 is 7912200002.

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 919848241 + 1080173956 = 30329^2 + 32866^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000022197 - 2²⁰ = 1998973621 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 (2000022187) 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, 527498 + ... + 531275.

It is an arithmetic number, because the mean of its divisors is an integer number (500270715).

Almost surely, 2^2000022197 is an apocalyptic number.

It is an amenable number.

2000022197 is a deficient number, since it is larger than the sum of its proper divisors (1060663).

2000022197 is a wasteful number, since it uses less digits than its factorization.

2000022197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060662.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2000022197 is about 44721.6077193117. The cubic root of 2000022197 is about 1259.9257109556.

Adding to 2000022197 its reverse (7912200002), we get a palindrome (9912222199).

The spelling of 2000022197 in words is "two billion, twenty-two thousand, one hundred ninety-seven".