20012012 has 6 divisors (see below), whose sum is σ = 35021028. Its totient is φ = 10006004.

The previous prime is 20012011. The next prime is 20012023. The reversal of 20012012 is 21021002.

20012012 is a modest number, since divided by 12012 gives 20 as remainder.

It is not an unprimeable number, because it can be changed into a prime (20012011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2501498 + ... + 2501505.

It is an arithmetic number, because the mean of its divisors is an integer number (5836838).

Almost surely, 2^20012012 is an apocalyptic number.

It is an amenable number.

20012012 is a deficient number, since it is larger than the sum of its proper divisors (15009016).

20012012 is a wasteful number, since it uses less digits than its factorization.

20012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5003007 (or 5003005 counting only the distinct ones).

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

The square root of 20012012 is about 4473.4787358386. The cubic root of 20012012 is about 271.4960934244.

Adding to 20012012 its reverse (21021002), we get a palindrome (41033014).

The spelling of 20012012 in words is "twenty million, twelve thousand, twelve".