10221201021212 has 24 divisors (see below), whose sum is σ = 18520288273200. Its totient is φ = 4930002274176.

The previous prime is 10221201021209. The next prime is 10221201021217. The reversal of 10221201021212 is 21212010212201.

10221201021212 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 not an unprimeable number, because it can be changed into a prime (10221201021217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38891978 + ... + 39153905.

It is an arithmetic number, because the mean of its divisors is an integer number (771678678050).

Almost surely, 2^{10221201021212} is an apocalyptic number.

It is an amenable number.

10221201021212 is a deficient number, since it is larger than the sum of its proper divisors (8299087251988).

10221201021212 is a wasteful number, since it uses less digits than its factorization.

10221201021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78047045 (or 78047043 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10221201021212 its reverse (21212010212201), we get a palindrome (31433211233413).

The spelling of 10221201021212 in words is "ten trillion, two hundred twenty-one billion, two hundred one million, twenty-one thousand, two hundred twelve".