10221001001111 has 4 divisors (see below), whose sum is σ = 10227507050424. Its totient is φ = 10214494951800.

The previous prime is 10221001001087. The next prime is 10221001001203. The reversal of 10221001001111 is 11110010012201.

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 10221001001111 - 2¹⁰ = 10221001000087 is a prime.

It is a super-2 number, since 2×10221001001111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10221001001092 and 10221001001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221001001011) 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, 3253022300 + ... + 3253025441.

It is an arithmetic number, because the mean of its divisors is an integer number (2556876762606).

Almost surely, 2^{10221001001111} is an apocalyptic number.

10221001001111 is a deficient number, since it is larger than the sum of its proper divisors (6506049313).

10221001001111 is an equidigital number, since it uses as much as digits as its factorization.

10221001001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6506049312.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10221001001111 its reverse (11110010012201), we get a palindrome (21331011013312).

The spelling of 10221001001111 in words is "ten trillion, two hundred twenty-one billion, one million, one thousand, one hundred eleven".