220201245 has 72 divisors (see below), whose sum is σ = 431267928. Its totient is φ = 103783680.

The previous prime is 220201243. The next prime is 220201253. The reversal of 220201245 is 542102022.

220201245 is a `hidden beast` number, since 220 + 201 + 245 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 131125401 + 89075844 = 11451^2 + 9438^2 .

It is not a de Polignac number, because 220201245 - 2¹ = 220201243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220201243) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 200919 + ... + 202011.

Almost surely, 2^220201245 is an apocalyptic number.

It is an amenable number.

220201245 is a deficient number, since it is larger than the sum of its proper divisors (211066683).

220201245 is a wasteful number, since it uses less digits than its factorization.

220201245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163 (or 1149 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 220201245 is about 14839.1793910580. The cubic root of 220201245 is about 603.8650900022.

Adding to 220201245 its reverse (542102022), we get a palindrome (762303267).

The spelling of 220201245 in words is "two hundred twenty million, two hundred one thousand, two hundred forty-five".