212021022220012 has 12 divisors (see below), whose sum is σ = 373706118302440. Its totient is φ = 105247845562176.

The previous prime is 212021022220001. The next prime is 212021022220037. The reversal of 212021022220012 is 210022220120212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190666386333 + ... + 190666387444.

Almost surely, 2^{212021022220012} is an apocalyptic number.

It is an amenable number.

212021022220012 is a deficient number, since it is larger than the sum of its proper divisors (161685096082428).

212021022220012 is a wasteful number, since it uses less digits than its factorization.

212021022220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381332773920 (or 381332773918 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 212021022220012 its reverse (210022220120212), we get a palindrome (422043242340224).

The spelling of 212021022220012 in words is "two hundred twelve trillion, twenty-one billion, twenty-two million, two hundred twenty thousand, twelve".