10000221212 has 12 divisors (see below), whose sum is σ = 17907373176. Its totient is φ = 4883828880.

The previous prime is 10000221199. The next prime is 10000221251. The reversal of 10000221212 is 21212200001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10000221193 and 10000221202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29070239 + ... + 29070582.

It is an arithmetic number, because the mean of its divisors is an integer number (1492281098).

Almost surely, 2^10000221212 is an apocalyptic number.

It is an amenable number.

10000221212 is a deficient number, since it is larger than the sum of its proper divisors (7907151964).

10000221212 is a wasteful number, since it uses less digits than its factorization.

10000221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58140868 (or 58140866 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10000221212 its reverse (21212200001), we get a palindrome (31212421213).

The spelling of 10000221212 in words is "ten billion, two hundred twenty-one thousand, two hundred twelve".