121484421 has 8 divisors (see below), whose sum is σ = 179976960. Its totient is φ = 80989596.

The previous prime is 121484411. The next prime is 121484437. The reversal of 121484421 is 124484121.

121484421 is a `hidden beast` number, since 1 + 214 + 8 + 442 + 1 = 666.

It is not a de Polignac number, because 121484421 - 2¹¹ = 121482373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4499423 = 121484421 / (1 + 2 + 1 + 4 + 8 + 4 + 4 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121484411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2249685 + ... + 2249738.

It is an arithmetic number, because the mean of its divisors is an integer number (22497120).

Almost surely, 2^121484421 is an apocalyptic number.

It is an amenable number.

121484421 is a deficient number, since it is larger than the sum of its proper divisors (58492539).

121484421 is an equidigital number, since it uses as much as digits as its factorization.

121484421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4499432 (or 4499426 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 121484421 is about 11021.9971420791. The cubic root of 121484421 is about 495.2679174069.

The spelling of 121484421 in words is "one hundred twenty-one million, four hundred eighty-four thousand, four hundred twenty-one".