220712275 has 24 divisors (see below), whose sum is σ = 331184160. Its totient is φ = 142440960.

The previous prime is 220712273. The next prime is 220712287. The reversal of 220712275 is 572217022.

It is not a de Polignac number, because 220712275 - 2¹ = 220712273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220712273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34120 + ... + 40069.

It is an arithmetic number, because the mean of its divisors is an integer number (13799340).

Almost surely, 2^220712275 is an apocalyptic number.

220712275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

220712275 is a deficient number, since it is larger than the sum of its proper divisors (110471885).

220712275 is a wasteful number, since it uses less digits than its factorization.

220712275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74223 (or 74218 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 220712275 is about 14856.3883565286. The cubic root of 220712275 is about 604.3318672037.

Adding to 220712275 its reverse (572217022), we get a palindrome (792929297).

The spelling of 220712275 in words is "two hundred twenty million, seven hundred twelve thousand, two hundred seventy-five".