2021212012 has 6 divisors (see below), whose sum is σ = 3537121028. Its totient is φ = 1010606004.

The previous prime is 2021212007. The next prime is 2021212031. The reversal of 2021212012 is 2102121202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2021211983 and 2021212001.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 252651498 + ... + 252651505.

Almost surely, 2^2021212012 is an apocalyptic number.

It is an amenable number.

2021212012 is a deficient number, since it is larger than the sum of its proper divisors (1515909016).

2021212012 is a wasteful number, since it uses less digits than its factorization.

2021212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505303007 (or 505303005 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2021212012 is about 44957.8915430873. The cubic root of 2021212012 is about 1264.3596381910.

Adding to 2021212012 its reverse (2102121202), we get a palindrome (4123333214).

The spelling of 2021212012 in words is "two billion, twenty-one million, two hundred twelve thousand, twelve".