3031021212 has 24 divisors (see below), whose sum is σ = 7123267200. Its totient is φ = 1003071216.

The previous prime is 3031021181. The next prime is 3031021229. The reversal of 3031021212 is 2121201303.

It is a junction number, because it is equal to n+sod(n) for n = 3031021191 and 3031021200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 906912 + ... + 910247.

It is an arithmetic number, because the mean of its divisors is an integer number (296802800).

Almost surely, 2^3031021212 is an apocalyptic number.

It is an amenable number.

3031021212 is an abundant number, since it is smaller than the sum of its proper divisors (4092245988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3031021212 is a wasteful number, since it uses less digits than its factorization.

3031021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817305 (or 1817303 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3031021212 is about 55054.7110790712. The cubic root of 3031021212 is about 1447.2036812496.

Adding to 3031021212 its reverse (2121201303), we get a palindrome (5152222515).

The spelling of 3031021212 in words is "three billion, thirty-one million, twenty-one thousand, two hundred twelve".