220202225 has 6 divisors (see below), whose sum is σ = 273050790. Its totient is φ = 176161760.

The previous prime is 220202221. The next prime is 220202233. The reversal of 220202225 is 522202022.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3876961 + 216325264 = 1969^2 + 14708^2 .

It is not a de Polignac number, because 220202225 - 2² = 220202221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220202221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4404020 + ... + 4404069.

It is an arithmetic number, because the mean of its divisors is an integer number (45508465).

Almost surely, 2^220202225 is an apocalyptic number.

220202225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220202225 is a deficient number, since it is larger than the sum of its proper divisors (52848565).

220202225 is an equidigital number, since it uses as much as digits as its factorization.

220202225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8808099 (or 8808094 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 220202225 is about 14839.2124117151. The cubic root of 220202225 is about 603.8659858296.

Adding to 220202225 its reverse (522202022), we get a palindrome (742404247).

The spelling of 220202225 in words is "two hundred twenty million, two hundred two thousand, two hundred twenty-five".