225211110231 has 16 divisors (see below), whose sum is σ = 311576563424. Its totient is φ = 144576866304.

The previous prime is 225211110211. The next prime is 225211110247. The reversal of 225211110231 is 132011112522.

It is not a de Polignac number, because 225211110231 - 2¹⁷ = 225210979159 is a prime.

It is a super-2 number, since 2×225211110231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225211110198 and 225211110207.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 10447630 + ... + 10469163.

It is an arithmetic number, because the mean of its divisors is an integer number (19473535214).

Almost surely, 2^225211110231 is an apocalyptic number.

225211110231 is a deficient number, since it is larger than the sum of its proper divisors (86365453193).

225211110231 is a wasteful number, since it uses less digits than its factorization.

225211110231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20916930.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 225211110231 its reverse (132011112522), we get a palindrome (357222222753).

The spelling of 225211110231 in words is "two hundred twenty-five billion, two hundred eleven million, one hundred ten thousand, two hundred thirty-one".