10011011210221 has 24 divisors (see below), whose sum is σ = 12115776823296. Its totient is φ = 8238678104160.

The previous prime is 10011011210209. The next prime is 10011011210243. The reversal of 10011011210221 is 12201211011001.

It is a happy number.

It is not a de Polignac number, because 10011011210221 - 2⁹ = 10011011209709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011011210201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25754046 + ... + 26139871.

It is an arithmetic number, because the mean of its divisors is an integer number (504824034304).

Almost surely, 2^{10011011210221} is an apocalyptic number.

It is an amenable number.

10011011210221 is a deficient number, since it is larger than the sum of its proper divisors (2104765613075).

10011011210221 is a wasteful number, since it uses less digits than its factorization.

10011011210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51894089 (or 51894082 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10011011210221 its reverse (12201211011001), we get a palindrome (22212222221222).

The spelling of 10011011210221 in words is "ten trillion, eleven billion, eleven million, two hundred ten thousand, two hundred twenty-one".