225121106671 has 4 divisors (see below), whose sum is σ = 225176139144. Its totient is φ = 225066074200.

The previous prime is 225121106579. The next prime is 225121106677. The reversal of 225121106671 is 176601121522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225121106671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225121106677) 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, 27510100 + ... + 27518281.

It is an arithmetic number, because the mean of its divisors is an integer number (56294034786).

Almost surely, 2^225121106671 is an apocalyptic number.

225121106671 is a deficient number, since it is larger than the sum of its proper divisors (55032473).

225121106671 is an equidigital number, since it uses as much as digits as its factorization.

225121106671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55032472.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 225121106671 in words is "two hundred twenty-five billion, one hundred twenty-one million, one hundred six thousand, six hundred seventy-one".