10001222111 has 8 divisors (see below), whose sum is σ = 10635775920. Its totient is φ = 9371806848.

The previous prime is 10001222081. The next prime is 10001222149. The reversal of 10001222111 is 11122210001.

10001222111 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 10001222111 - 2¹⁸ = 10000959967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10001222092 and 10001222101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001222711) 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, 1280621 + ... + 1288406.

It is an arithmetic number, because the mean of its divisors is an integer number (1329471990).

Almost surely, 2^10001222111 is an apocalyptic number.

10001222111 is a deficient number, since it is larger than the sum of its proper divisors (634553809).

10001222111 is a wasteful number, since it uses less digits than its factorization.

10001222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569273.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10001222111 its reverse (11122210001), we get a palindrome (21123432112).

The spelling of 10001222111 in words is "ten billion, one million, two hundred twenty-two thousand, one hundred eleven".