20202022197 has 24 divisors (see below), whose sum is σ = 33369912576. Its totient is φ = 11536901856.

The previous prime is 20202022189. The next prime is 20202022241. The reversal of 20202022197 is 79122020202.

It is not a de Polignac number, because 20202022197 - 2³ = 20202022189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20202022197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202022187) 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, 5188 + ... + 201074.

It is an arithmetic number, because the mean of its divisors is an integer number (1390413024).

Almost surely, 2^20202022197 is an apocalyptic number.

It is an amenable number.

20202022197 is a deficient number, since it is larger than the sum of its proper divisors (13167890379).

20202022197 is a wasteful number, since it uses less digits than its factorization.

20202022197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197537 (or 197534 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

Adding to 20202022197 its reverse (79122020202), we get a palindrome (99324042399).

The spelling of 20202022197 in words is "twenty billion, two hundred two million, twenty-two thousand, one hundred ninety-seven".