11223999999 has 6 divisors (see below), whose sum is σ = 16212444456. Its totient is φ = 7482666660.

The previous prime is 11223999967. The next prime is 11224000001. The reversal of 11223999999 is 99999932211.

It is not a de Polignac number, because 11223999999 - 2⁵ = 11223999967 is a prime.

11223999999 is a modest number, since divided by 999999 gives 11223 as remainder.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223999799) 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, 623555547 + ... + 623555564.

It is an arithmetic number, because the mean of its divisors is an integer number (2702074076).

Almost surely, 2^11223999999 is an apocalyptic number.

11223999999 is a deficient number, since it is larger than the sum of its proper divisors (4988444457).

11223999999 is a wasteful number, since it uses less digits than its factorization.

11223999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247111117 (or 1247111114 counting only the distinct ones).

The product of its digits is 6377292, while the sum is 63.

The spelling of 11223999999 in words is "eleven billion, two hundred twenty-three million, nine hundred ninety-nine thousand, nine hundred ninety-nine".