121225347 has 6 divisors (see below), whose sum is σ = 175103292. Its totient is φ = 80816892.

The previous prime is 121225327. The next prime is 121225369. The reversal of 121225347 is 743522121.

121225347 is a `hidden beast` number, since 1 + 2 + 122 + 534 + 7 = 666.

It is not a de Polignac number, because 121225347 - 2¹⁵ = 121192579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121225347.

It is not an unprimeable number, because it can be changed into a prime (121225327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6734733 + ... + 6734750.

It is an arithmetic number, because the mean of its divisors is an integer number (29183882).

Almost surely, 2^121225347 is an apocalyptic number.

121225347 is a deficient number, since it is larger than the sum of its proper divisors (53877945).

121225347 is a wasteful number, since it uses less digits than its factorization.

121225347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13469489 (or 13469486 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 121225347 is about 11010.2382808003. The cubic root of 121225347 is about 494.9156023848.

Adding to 121225347 its reverse (743522121), we get a palindrome (864747468).

The spelling of 121225347 in words is "one hundred twenty-one million, two hundred twenty-five thousand, three hundred forty-seven".