201224897 has 4 divisors (see below), whose sum is σ = 201277440. Its totient is φ = 201172356.

The previous prime is 201224873. The next prime is 201224899. The reversal of 201224897 is 798422102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201224897 - 2²² = 197030593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201224899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20033 + ... + 28350.

It is an arithmetic number, because the mean of its divisors is an integer number (50319360).

Almost surely, 2^201224897 is an apocalyptic number.

It is an amenable number.

201224897 is a deficient number, since it is larger than the sum of its proper divisors (52543).

201224897 is an equidigital number, since it uses as much as digits as its factorization.

201224897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52542.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 201224897 is about 14185.3761670250. The cubic root of 201224897 is about 585.9949921334.

Adding to 201224897 its reverse (798422102), we get a palindrome (999646999).

The spelling of 201224897 in words is "two hundred one million, two hundred twenty-four thousand, eight hundred ninety-seven".