11000022111 has 24 divisors (see below), whose sum is σ = 17434007136. Its totient is φ = 6641519040.

The previous prime is 11000022101. The next prime is 11000022133. The reversal of 11000022111 is 11122000011.

It is a happy number.

It is not a de Polignac number, because 11000022111 - 2¹⁴ = 11000005727 is a prime.

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

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 11000022093 and 11000022102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000022101) 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, 880755 + ... + 893156.

It is an arithmetic number, because the mean of its divisors is an integer number (726416964).

Almost surely, 2^11000022111 is an apocalyptic number.

11000022111 is a deficient number, since it is larger than the sum of its proper divisors (6433985025).

11000022111 is a wasteful number, since it uses less digits than its factorization.

11000022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773983 (or 1773980 counting only the distinct ones).

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

Adding to 11000022111 its reverse (11122000011), we get a palindrome (22122022122).

The spelling of 11000022111 in words is "eleven billion, twenty-two thousand, one hundred eleven".