10221201212 has 12 divisors (see below), whose sum is σ = 18064202856. Its totient is φ = 5060000400.

The previous prime is 10221201203. The next prime is 10221201233. The reversal of 10221201212 is 21210212201.

10221201212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 12649598 + ... + 12650405.

It is an arithmetic number, because the mean of its divisors is an integer number (1505350238).

Almost surely, 2^10221201212 is an apocalyptic number.

It is an amenable number.

10221201212 is a deficient number, since it is larger than the sum of its proper divisors (7843001644).

10221201212 is a wasteful number, since it uses less digits than its factorization.

10221201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25300108 (or 25300106 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10221201212 its reverse (21210212201), we get a palindrome (31431413413).

The spelling of 10221201212 in words is "ten billion, two hundred twenty-one million, two hundred one thousand, two hundred twelve".