220165201 has 2 divisors, whose sum is σ = 220165202. Its totient is φ = 220165200.

The previous prime is 220165171. The next prime is 220165213. The reversal of 220165201 is 102561022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125978176 + 94187025 = 11224^2 + 9705^2 .

It is a cyclic number.

It is not a de Polignac number, because 220165201 - 2⁷ = 220165073 is a prime.

It is not a weakly prime, because it can be changed into another prime (220165261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110082600 + 110082601.

It is an arithmetic number, because the mean of its divisors is an integer number (110082601).

Almost surely, 2^220165201 is an apocalyptic number.

It is an amenable number.

220165201 is a deficient number, since it is larger than the sum of its proper divisors (1).

220165201 is an equidigital number, since it uses as much as digits as its factorization.

220165201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 220165201 is about 14837.9648537123. The cubic root of 220165201 is about 603.8321399902.

The spelling of 220165201 in words is "two hundred twenty million, one hundred sixty-five thousand, two hundred one".