222520352225 has 12 divisors (see below), whose sum is σ = 276016969200. Its totient is φ = 177957099600.

The previous prime is 222520352221. The next prime is 222520352239. The reversal of 222520352225 is 522253025222.

It is not a de Polignac number, because 222520352225 - 2² = 222520352221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222520352191 and 222520352200.

It is not an unprimeable number, because it can be changed into a prime (222520352221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1402775 + ... + 1553324.

It is an arithmetic number, because the mean of its divisors is an integer number (23001414100).

Almost surely, 2^222520352225 is an apocalyptic number.

222520352225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222520352225 is a deficient number, since it is larger than the sum of its proper divisors (53496616975).

222520352225 is a wasteful number, since it uses less digits than its factorization.

222520352225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2959120 (or 2959115 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 32.

Adding to 222520352225 its reverse (522253025222), we get a palindrome (744773377447).

The spelling of 222520352225 in words is "two hundred twenty-two billion, five hundred twenty million, three hundred fifty-two thousand, two hundred twenty-five".