225512111102 has 4 divisors (see below), whose sum is σ = 338268166656. Its totient is φ = 112756055550.

The previous prime is 225512111093. The next prime is 225512111189. The reversal of 225512111102 is 201111215522.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56378027774 + ... + 56378027777.

It is an arithmetic number, because the mean of its divisors is an integer number (84567041664).

Almost surely, 2^225512111102 is an apocalyptic number.

225512111102 is a deficient number, since it is larger than the sum of its proper divisors (112756055554).

225512111102 is a wasteful number, since it uses less digits than its factorization.

225512111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112756055553.

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

Adding to 225512111102 its reverse (201111215522), we get a palindrome (426623326624).

The spelling of 225512111102 in words is "two hundred twenty-five billion, five hundred twelve million, one hundred eleven thousand, one hundred two".