202220197 has 8 divisors (see below), whose sum is σ = 203518944. Its totient is φ = 200926128.

The previous prime is 202220177. The next prime is 202220201. The reversal of 202220197 is 791022202.

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-202220197 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 (202220107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124563 + ... + 126175.

It is an arithmetic number, because the mean of its divisors is an integer number (25439868).

Almost surely, 2^202220197 is an apocalyptic number.

It is an amenable number.

202220197 is a deficient number, since it is larger than the sum of its proper divisors (1298747).

202220197 is a wasteful number, since it uses less digits than its factorization.

202220197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 202220197 is about 14220.4147970444. The cubic root of 202220197 is about 586.9595544186.

Adding to 202220197 its reverse (791022202), we get a palindrome (993242399).

The spelling of 202220197 in words is "two hundred two million, two hundred twenty thousand, one hundred ninety-seven".