202225217 has 6 divisors (see below), whose sum is σ = 214182918. Its totient is φ = 190274432.

The previous prime is 202225213. The next prime is 202225237. The reversal of 202225217 is 712522202.

It can be written as a sum of positive squares in 3 ways, for example, as 5973136 + 196252081 = 2444^2 + 14009^2 .

It is not a de Polignac number, because 202225217 - 2² = 202225213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202225192 and 202225201.

It is not an unprimeable number, because it can be changed into a prime (202225211) 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, 56909 + ... + 60357.

It is an arithmetic number, because the mean of its divisors is an integer number (35697153).

Almost surely, 2^202225217 is an apocalyptic number.

It is an amenable number.

202225217 is a deficient number, since it is larger than the sum of its proper divisors (11957701).

202225217 is an frugal number, since it uses more digits than its factorization.

202225217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6915 (or 3466 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 202225217 is about 14220.5913027553. The cubic root of 202225217 is about 586.9644113561.

Adding to 202225217 its reverse (712522202), we get a palindrome (914747419).

The spelling of 202225217 in words is "two hundred two million, two hundred twenty-five thousand, two hundred seventeen".