10221101011111 has 4 divisors (see below), whose sum is σ = 10226138519800. Its totient is φ = 10216063502424.

The previous prime is 10221101011073. The next prime is 10221101011217. The reversal of 10221101011111 is 11111010112201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10221101011111 - 2⁷ = 10221101010983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10221101011091 and 10221101011100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221101041111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2518751301 + ... + 2518755358.

It is an arithmetic number, because the mean of its divisors is an integer number (2556534629950).

Almost surely, 2^{10221101011111} is an apocalyptic number.

10221101011111 is a deficient number, since it is larger than the sum of its proper divisors (5037508689).

10221101011111 is an equidigital number, since it uses as much as digits as its factorization.

10221101011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5037508688.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 10221101011111 its reverse (11111010112201), we get a palindrome (21332111123312).

The spelling of 10221101011111 in words is "ten trillion, two hundred twenty-one billion, one hundred one million, eleven thousand, one hundred eleven".