220131201 has 4 divisors (see below), whose sum is σ = 293508272. Its totient is φ = 146754132.

The previous prime is 220131187. The next prime is 220131203. The reversal of 220131201 is 102131022.

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 not a de Polignac number, because 220131201 - 2⁷ = 220131073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220131203) 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, 36688531 + ... + 36688536.

It is an arithmetic number, because the mean of its divisors is an integer number (73377068).

Almost surely, 2^220131201 is an apocalyptic number.

It is an amenable number.

220131201 is a deficient number, since it is larger than the sum of its proper divisors (73377071).

220131201 is an equidigital number, since it uses as much as digits as its factorization.

220131201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73377070.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 220131201 is about 14836.8190997936. The cubic root of 220131201 is about 603.8010552266.

Adding to 220131201 its reverse (102131022), we get a palindrome (322262223).

The spelling of 220131201 in words is "two hundred twenty million, one hundred thirty-one thousand, two hundred one".