225031431211 has 4 divisors (see below), whose sum is σ = 226040540992. Its totient is φ = 224022321432.

The previous prime is 225031431197. The next prime is 225031431223. The reversal of 225031431211 is 112134130522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112134130522 = 2 ⋅56067065261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225031431211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225031431281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504554556 + ... + 504555001.

It is an arithmetic number, because the mean of its divisors is an integer number (56510135248).

Almost surely, 2^225031431211 is an apocalyptic number.

225031431211 is a deficient number, since it is larger than the sum of its proper divisors (1009109781).

225031431211 is a wasteful number, since it uses less digits than its factorization.

225031431211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009109780.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 225031431211 its reverse (112134130522), we get a palindrome (337165561733).

The spelling of 225031431211 in words is "two hundred twenty-five billion, thirty-one million, four hundred thirty-one thousand, two hundred eleven".