220147201 has 4 divisors (see below), whose sum is σ = 224831232. Its totient is φ = 215463172.

The previous prime is 220147189. The next prime is 220147241. The reversal of 220147201 is 102741022.

It is a happy number.

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: 102741022 = 2 ⋅51370511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220147201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220147241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2341945 + ... + 2342038.

It is an arithmetic number, because the mean of its divisors is an integer number (56207808).

Almost surely, 2^220147201 is an apocalyptic number.

It is an amenable number.

220147201 is a deficient number, since it is larger than the sum of its proper divisors (4684031).

220147201 is an equidigital number, since it uses as much as digits as its factorization.

220147201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4684030.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 220147201 is about 14837.3582891295. The cubic root of 220147201 is about 603.8156837494.

Adding to 220147201 its reverse (102741022), we get a palindrome (322888223).

The spelling of 220147201 in words is "two hundred twenty million, one hundred forty-seven thousand, two hundred one".