10001220000111 has 24 divisors (see below), whose sum is σ = 14468224240080. Its totient is φ = 6657325699200.

The previous prime is 10001220000097. The next prime is 10001220000113. The reversal of 10001220000111 is 11100002210001.

It is a happy number.

10001220000111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10001220000111 - 2¹⁹ = 10001219475823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10001220000093 and 10001220000102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001220000113) 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, 15423880 + ... + 16059218.

It is an arithmetic number, because the mean of its divisors is an integer number (602842676670).

Almost surely, 2^{10001220000111} is an apocalyptic number.

10001220000111 is a deficient number, since it is larger than the sum of its proper divisors (4467004239969).

10001220000111 is a wasteful number, since it uses less digits than its factorization.

10001220000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638007 (or 638004 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10001220000111 its reverse (11100002210001), we get a palindrome (21101222210112).

The spelling of 10001220000111 in words is "ten trillion, one billion, two hundred twenty million, one hundred eleven", and thus it is an aban number.