2012421 has 8 divisors (see below), whose sum is σ = 2695680. Its totient is φ = 1335392.

The previous prime is 2012419. The next prime is 2012429. The reversal of 2012421 is 1242102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2012421 - 2¹ = 2012419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012397 and 2012406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741 + ... + 2138.

It is an arithmetic number, because the mean of its divisors is an integer number (336960).

2^2012421 is an apocalyptic number.

It is an amenable number.

2012421 is a deficient number, since it is larger than the sum of its proper divisors (683259).

2012421 is a wasteful number, since it uses less digits than its factorization.

2012421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2012421 is about 1418.5982517965. The cubic root of 2012421 is about 126.2523915503.

Adding to 2012421 its reverse (1242102), we get a palindrome (3254523).

The spelling of 2012421 in words is "two million, twelve thousand, four hundred twenty-one".