121123353225 has 24 divisors (see below), whose sum is σ = 228865460800. Its totient is φ = 55370675520.

The previous prime is 121123353199. The next prime is 121123353229. The reversal of 121123353225 is 522353321121.

It is not a de Polignac number, because 121123353225 - 2⁶ = 121123353161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121123353192 and 121123353201.

It is not an unprimeable number, because it can be changed into a prime (121123353229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115355050 + ... + 115356099.

Almost surely, 2^121123353225 is an apocalyptic number.

121123353225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121123353225 is a deficient number, since it is larger than the sum of its proper divisors (107742107575).

121123353225 is a wasteful number, since it uses less digits than its factorization.

121123353225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230711169 (or 230711164 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

Adding to 121123353225 its reverse (522353321121), we get a palindrome (643476674346).

The spelling of 121123353225 in words is "one hundred twenty-one billion, one hundred twenty-three million, three hundred fifty-three thousand, two hundred twenty-five".