220232201 has 4 divisors (see below), whose sum is σ = 251693952. Its totient is φ = 188770452.

The previous prime is 220232189. The next prime is 220232203. The reversal of 220232201 is 102232022.

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, and also an emirpimes, since its reverse is a distinct semiprime: 102232022 = 2 ⋅51116011.

It is a cyclic number.

It is not a de Polignac number, because 220232201 - 2¹⁰ = 220231177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220232203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15730865 + ... + 15730878.

It is an arithmetic number, because the mean of its divisors is an integer number (62923488).

Almost surely, 2^220232201 is an apocalyptic number.

It is an amenable number.

220232201 is a deficient number, since it is larger than the sum of its proper divisors (31461751).

220232201 is an equidigital number, since it uses as much as digits as its factorization.

220232201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31461750.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 220232201 is about 14840.2224039938. Note that the first 3 decimals coincide. The cubic root of 220232201 is about 603.8933858941.

Adding to 220232201 its reverse (102232022), we get a palindrome (322464223).

The spelling of 220232201 in words is "two hundred twenty million, two hundred thirty-two thousand, two hundred one".