10221210010221 has 16 divisors (see below), whose sum is σ = 16252358774784. Its totient is φ = 5586748328304.

The previous prime is 10221210010181. The next prime is 10221210010337. The reversal of 10221210010221 is 12201001212201.

It is not a de Polignac number, because 10221210010221 - 2⁹ = 10221210009709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10221210010221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221210015221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10580962261 + ... + 10580963226.

It is an arithmetic number, because the mean of its divisors is an integer number (1015772423424).

Almost surely, 2^{10221210010221} is an apocalyptic number.

It is an amenable number.

10221210010221 is a deficient number, since it is larger than the sum of its proper divisors (6031148764563).

10221210010221 is a wasteful number, since it uses less digits than its factorization.

10221210010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21161925520.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10221210010221 its reverse (12201001212201), we get a palindrome (22422211222422).

The spelling of 10221210010221 in words is "ten trillion, two hundred twenty-one billion, two hundred ten million, ten thousand, two hundred twenty-one".