10001022111 has 6 divisors (see below), whose sum is σ = 14445920840. Its totient is φ = 6667348068.

The previous prime is 10001022103. The next prime is 10001022113. The reversal of 10001022111 is 11122010001.

It is a happy number.

It is not a de Polignac number, because 10001022111 - 2³ = 10001022103 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: 1111224679 = 10001022111 / (1 + 0 + 0 + 0 + 1 + 0 + 2 + 2 + 1 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10001022093 and 10001022102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001022113) 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 5 ways as a sum of consecutive naturals, for example, 555612331 + ... + 555612348.

Almost surely, 2^10001022111 is an apocalyptic number.

10001022111 is a deficient number, since it is larger than the sum of its proper divisors (4444898729).

10001022111 is a wasteful number, since it uses less digits than its factorization.

10001022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111224685 (or 1111224682 counting only the distinct ones).

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

Adding to 10001022111 its reverse (11122010001), we get a palindrome (21123032112).

The spelling of 10001022111 in words is "ten billion, one million, twenty-two thousand, one hundred eleven".