220120201 has 6 divisors (see below), whose sum is σ = 256058250. Its totient is φ = 188674416.

The previous prime is 220120193. The next prime is 220120211. The reversal of 220120201 is 102021022.

It can be written as a sum of positive squares in only one way, i.e., 210975625 + 9144576 = 14525^2 + 3024^2 .

It is not a de Polignac number, because 220120201 - 2³ = 220120193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220120211) 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 5 ways as a sum of consecutive naturals, for example, 2246076 + ... + 2246173.

It is an arithmetic number, because the mean of its divisors is an integer number (42676375).

Almost surely, 2^220120201 is an apocalyptic number.

It is an amenable number.

220120201 is a deficient number, since it is larger than the sum of its proper divisors (35938049).

220120201 is an equidigital number, since it uses as much as digits as its factorization.

220120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4492263 (or 4492256 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 220120201 is about 14836.4483957583. The cubic root of 220120201 is about 603.7909977061.

Adding to 220120201 its reverse (102021022), we get a palindrome (322141223).

The spelling of 220120201 in words is "two hundred twenty million, one hundred twenty thousand, two hundred one".