210120241225 has 12 divisors (see below), whose sum is σ = 261913236480. Its totient is φ = 167216104400.

The previous prime is 210120241223. The next prime is 210120241229. The reversal of 210120241225 is 522142021012.

It is not a de Polignac number, because 210120241225 - 2¹ = 210120241223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210120241196 and 210120241205.

It is not an unprimeable number, because it can be changed into a prime (210120241223) 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, 21997345 + ... + 22006894.

It is an arithmetic number, because the mean of its divisors is an integer number (21826103040).

Almost surely, 2^210120241225 is an apocalyptic number.

210120241225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

210120241225 is a deficient number, since it is larger than the sum of its proper divisors (51792995255).

210120241225 is a wasteful number, since it uses less digits than its factorization.

210120241225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44004440 (or 44004435 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 210120241225 its reverse (522142021012), we get a palindrome (732262262237).

The spelling of 210120241225 in words is "two hundred ten billion, one hundred twenty million, two hundred forty-one thousand, two hundred twenty-five".