10021110111 has 6 divisors (see below), whose sum is σ = 14474936840. Its totient is φ = 6680740068.

The previous prime is 10021110107. The next prime is 10021110119. The reversal of 10021110111 is 11101112001.

It is not a de Polignac number, because 10021110111 - 2² = 10021110107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1113456679 = 10021110111 / (1 + 0 + 0 + 2 + 1 + 1 + 1 + 0 + 1 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021110093 and 10021110102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021110119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 556728331 + ... + 556728348.

Almost surely, 2^10021110111 is an apocalyptic number.

10021110111 is a deficient number, since it is larger than the sum of its proper divisors (4453826729).

10021110111 is a wasteful number, since it uses less digits than its factorization.

10021110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113456685 (or 1113456682 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 10021110111 its reverse (11101112001), we get a palindrome (21122222112).

The spelling of 10021110111 in words is "ten billion, twenty-one million, one hundred ten thousand, one hundred eleven".