121225753 has 4 divisors (see below), whose sum is σ = 132246288. Its totient is φ = 110205220.

The previous prime is 121225703. The next prime is 121225763. The reversal of 121225753 is 357522121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121225753 - 2¹³ = 121217561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121225703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5510251 + ... + 5510272.

It is an arithmetic number, because the mean of its divisors is an integer number (33061572).

Almost surely, 2^121225753 is an apocalyptic number.

It is an amenable number.

121225753 is a deficient number, since it is larger than the sum of its proper divisors (11020535).

121225753 is a wasteful number, since it uses less digits than its factorization.

121225753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11020534.

The product of its digits is 4200, while the sum is 28.

The square root of 121225753 is about 11010.2567181697. The cubic root of 121225753 is about 494.9161548972.

Adding to 121225753 its reverse (357522121), we get a palindrome (478747874).

The spelling of 121225753 in words is "one hundred twenty-one million, two hundred twenty-five thousand, seven hundred fifty-three".