2012004421 has 4 divisors (see below), whose sum is σ = 2299433632. Its totient is φ = 1724575212.

The previous prime is 2012004413. The next prime is 2012004431. The reversal of 2012004421 is 1244002102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2012004421 - 2³ = 2012004413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012004395 and 2012004404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012004431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143714595 + ... + 143714608.

It is an arithmetic number, because the mean of its divisors is an integer number (574858408).

Almost surely, 2^2012004421 is an apocalyptic number.

It is an amenable number.

2012004421 is a deficient number, since it is larger than the sum of its proper divisors (287429211).

2012004421 is an equidigital number, since it uses as much as digits as its factorization.

2012004421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287429210.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2012004421 is about 44855.3722646463. The cubic root of 2012004421 is about 1262.4367936987.

Adding to 2012004421 its reverse (1244002102), we get a palindrome (3256006523).

The spelling of 2012004421 in words is "two billion, twelve million, four thousand, four hundred twenty-one".