2012002021 has 8 divisors (see below), whose sum is σ = 2133039104. Its totient is φ = 1894473360.

The previous prime is 2012002019. The next prime is 2012002043. The reversal of 2012002021 is 1202002102.

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 2012002021 - 2¹ = 2012002019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012001989 and 2012002007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012002001) 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, 875925 + ... + 878218.

It is an arithmetic number, because the mean of its divisors is an integer number (266629888).

Almost surely, 2^2012002021 is an apocalyptic number.

It is an amenable number.

2012002021 is a deficient number, since it is larger than the sum of its proper divisors (121037083).

2012002021 is a wasteful number, since it uses less digits than its factorization.

2012002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754211.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2012002021 is about 44855.3455119900. The cubic root of 2012002021 is about 1262.4362917367.

Adding to 2012002021 its reverse (1202002102), we get a palindrome (3214004123).

The spelling of 2012002021 in words is "two billion, twelve million, two thousand, twenty-one".