2021223212 has 12 divisors (see below), whose sum is σ = 3537471336. Its totient is φ = 1010517120.

The previous prime is 2021223131. The next prime is 2021223277. The reversal of 2021223212 is 2123221202.

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 3 ways as a sum of consecutive naturals, for example, 50012 + ... + 80892.

It is an arithmetic number, because the mean of its divisors is an integer number (294789278).

Almost surely, 2^2021223212 is an apocalyptic number.

It is an amenable number.

2021223212 is a deficient number, since it is larger than the sum of its proper divisors (1516248124).

2021223212 is a wasteful number, since it uses less digits than its factorization.

2021223212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47248 (or 47246 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2021223212 is about 44958.0161039163. The cubic root of 2021223212 is about 1264.3619735557.

Adding to 2021223212 its reverse (2123221202), we get a palindrome (4144444414).

The spelling of 2021223212 in words is "two billion, twenty-one million, two hundred twenty-three thousand, two hundred twelve".