2000012021 has 8 divisors (see below), whose sum is σ = 2341477824. Its totient is φ = 1672483680.

The previous prime is 2000012017. The next prime is 2000012051. The reversal of 2000012021 is 1202100002.

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

It is not a de Polignac number, because 2000012021 - 2² = 2000012017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000012051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3484055 + ... + 3484628.

It is an arithmetic number, because the mean of its divisors is an integer number (292684728).

Almost surely, 2^2000012021 is an apocalyptic number.

It is an amenable number.

2000012021 is a deficient number, since it is larger than the sum of its proper divisors (341465803).

2000012021 is an equidigital number, since it uses as much as digits as its factorization.

2000012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6968731.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 2000012021 is about 44721.4939486596. The cubic root of 2000012021 is about 1259.9235741416.

Adding to 2000012021 its reverse (1202100002), we get a palindrome (3202112023).

The spelling of 2000012021 in words is "two billion, twelve thousand, twenty-one".