9412121 has 4 divisors (see below), whose sum is σ = 9434292. Its totient is φ = 9389952.

The previous prime is 9412099. The next prime is 9412133. The reversal of 9412121 is 1212149.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 774400 + 8637721 = 880^2 + 2939^2 .

It is a cyclic number.

It is not a de Polignac number, because 9412121 - 2¹⁸ = 9149977 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9412093 and 9412102.

It is not an unprimeable number, because it can be changed into a prime (9412021) 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, 10436 + ... + 11301.

It is an arithmetic number, because the mean of its divisors is an integer number (2358573).

Almost surely, 2^9412121 is an apocalyptic number.

It is an amenable number.

9412121 is a deficient number, since it is larger than the sum of its proper divisors (22171).

9412121 is a wasteful number, since it uses less digits than its factorization.

9412121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22170.

The product of its digits is 144, while the sum is 20.

The square root of 9412121 is about 3067.9180236766. The cubic root of 9412121 is about 211.1361026021.

The spelling of 9412121 in words is "nine million, four hundred twelve thousand, one hundred twenty-one".