121104225 has 72 divisors (see below), whose sum is σ = 238859712. Its totient is φ = 58166400.

The previous prime is 121104199. The next prime is 121104227. The reversal of 121104225 is 522401121.

It is not a de Polignac number, because 121104225 - 2⁶ = 121104161 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121104198 and 121104207.

It is not an unprimeable number, because it can be changed into a prime (121104227) 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 71 ways as a sum of consecutive naturals, for example, 413179 + ... + 413471.

It is an arithmetic number, because the mean of its divisors is an integer number (3317496).

Almost surely, 2^121104225 is an apocalyptic number.

121104225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121104225 is a deficient number, since it is larger than the sum of its proper divisors (117755487).

121104225 is a wasteful number, since it uses less digits than its factorization.

121104225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 121104225 is about 11004.7364802616. The cubic root of 121104225 is about 494.7507162317.

Adding to 121104225 its reverse (522401121), we get a palindrome (643505346).

It can be divided in two parts, 121104 and 225, that multiplied together give a square (27248400 = 5220²).

The spelling of 121104225 in words is "one hundred twenty-one million, one hundred four thousand, two hundred twenty-five".