121455445335425 has 12 divisors (see below), whose sum is σ = 150605035827456. Its totient is φ = 97164173293200.

The previous prime is 121455445335331. The next prime is 121455445335439. The reversal of 121455445335425 is 524533544554121.

It is not a de Polignac number, because 121455445335425 - 2¹⁰ = 121455445334401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9859820 + ... + 18442530.

It is an arithmetic number, because the mean of its divisors is an integer number (12550419652288).

Almost surely, 2^{121455445335425} is an apocalyptic number.

It is an amenable number.

121455445335425 is a deficient number, since it is larger than the sum of its proper divisors (29149590492031).

121455445335425 is an equidigital number, since it uses as much as digits as its factorization.

121455445335425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9148768 (or 9148763 counting only the distinct ones).

The product of its digits is 28800000, while the sum is 53.

Adding to 121455445335425 its reverse (524533544554121), we get a palindrome (645988989889546).

The spelling of 121455445335425 in words is "one hundred twenty-one trillion, four hundred fifty-five billion, four hundred forty-five million, three hundred thirty-five thousand, four hundred twenty-five".