10221001111 has 8 divisors (see below), whose sum is σ = 10244479104. Its totient is φ = 10197550560.

The previous prime is 10221001097. The next prime is 10221001129. The reversal of 10221001111 is 11110012201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10221001111 - 2⁷ = 10221000983 is a prime.

It is a super-2 number, since 2×10221001111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221001711) 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, 859770 + ... + 871576.

It is an arithmetic number, because the mean of its divisors is an integer number (1280559888).

Almost surely, 2^10221001111 is an apocalyptic number.

10221001111 is a deficient number, since it is larger than the sum of its proper divisors (23477993).

10221001111 is a wasteful number, since it uses less digits than its factorization.

10221001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13721.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10221001111 its reverse (11110012201), we get a palindrome (21331013312).

The spelling of 10221001111 in words is "ten billion, two hundred twenty-one million, one thousand, one hundred eleven".