121385224345 has 16 divisors (see below), whose sum is σ = 181604907648. Its totient is φ = 75668711040.

The previous prime is 121385224319. The next prime is 121385224349. The reversal of 121385224345 is 543422583121.

It is not a de Polignac number, because 121385224345 - 2⁷ = 121385224217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121385224298 and 121385224307.

It is not an unprimeable number, because it can be changed into a prime (121385224349) 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 15 ways as a sum of consecutive naturals, for example, 157642764 + ... + 157643533.

It is an arithmetic number, because the mean of its divisors is an integer number (11350306728).

Almost surely, 2^121385224345 is an apocalyptic number.

It is an amenable number.

121385224345 is a deficient number, since it is larger than the sum of its proper divisors (60219683303).

121385224345 is a wasteful number, since it uses less digits than its factorization.

121385224345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315286320.

The product of its digits is 230400, while the sum is 40.

The spelling of 121385224345 in words is "one hundred twenty-one billion, three hundred eighty-five million, two hundred twenty-four thousand, three hundred forty-five".