225211110251 has 12 divisors (see below), whose sum is σ = 237904093152. Its totient is φ = 213164082864.

The previous prime is 225211110247. The next prime is 225211110277. The reversal of 225211110251 is 152011112522.

It is not a de Polignac number, because 225211110251 - 2² = 225211110247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225211110211) 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, 115385 + ... + 680981.

It is an arithmetic number, because the mean of its divisors is an integer number (19825341096).

Almost surely, 2^225211110251 is an apocalyptic number.

225211110251 is a deficient number, since it is larger than the sum of its proper divisors (12692982901).

225211110251 is a wasteful number, since it uses less digits than its factorization.

225211110251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566738 (or 566719 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 23.

Adding to 225211110251 its reverse (152011112522), we get a palindrome (377222222773).

The spelling of 225211110251 in words is "two hundred twenty-five billion, two hundred eleven million, one hundred ten thousand, two hundred fifty-one".