220710225 has 24 divisors (see below), whose sum is σ = 365338720. Its totient is φ = 117573120.

The previous prime is 220710223. The next prime is 220710227. The reversal of 220710225 is 522017022.

It is a happy number.

220710225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (220710223) and next prime (220710227).

It is not a de Polignac number, because 220710225 - 2¹ = 220710223 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220710221) 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, 108417 + ... + 110433.

Almost surely, 2^220710225 is an apocalyptic number.

220710225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220710225 is a deficient number, since it is larger than the sum of its proper divisors (144628495).

220710225 is a wasteful number, since it uses less digits than its factorization.

220710225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3489 (or 3484 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 220710225 is about 14856.3193624801. The cubic root of 220710225 is about 604.3299961641.

Adding to 220710225 its reverse (522017022), we get a palindrome (742727247).

The spelling of 220710225 in words is "two hundred twenty million, seven hundred ten thousand, two hundred twenty-five".