220072201 has 4 divisors (see below), whose sum is σ = 223680004. Its totient is φ = 216464400.

The previous prime is 220072163. The next prime is 220072207. The reversal of 220072201 is 102270022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22810176 + 197262025 = 4776^2 + 14045^2 .

It is a cyclic number.

It is not a de Polignac number, because 220072201 - 2⁹ = 220071689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220072207) 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, 1803810 + ... + 1803931.

It is an arithmetic number, because the mean of its divisors is an integer number (55920001).

Almost surely, 2^220072201 is an apocalyptic number.

It is an amenable number.

220072201 is a deficient number, since it is larger than the sum of its proper divisors (3607803).

220072201 is an equidigital number, since it uses as much as digits as its factorization.

220072201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607802.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 220072201 is about 14834.8306697448. The cubic root of 220072201 is about 603.7471064221.

The spelling of 220072201 in words is "two hundred twenty million, seventy-two thousand, two hundred one".