11229859988 has 24 divisors (see below), whose sum is σ = 20290631424. Its totient is φ = 5432616000.

The previous prime is 11229859987. The next prime is 11229860029. The reversal of 11229859988 is 88995892211.

It is a super-2 number, since 2×11229859988² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a self number, because there is not a number n which added to its sum of digits gives 11229859988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11229859981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884888 + ... + 897488.

It is an arithmetic number, because the mean of its divisors is an integer number (845442976).

Almost surely, 2^11229859988 is an apocalyptic number.

It is an amenable number.

11229859988 is a deficient number, since it is larger than the sum of its proper divisors (9060771436).

11229859988 is a wasteful number, since it uses less digits than its factorization.

11229859988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19823 (or 19821 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 62.

The spelling of 11229859988 in words is "eleven billion, two hundred twenty-nine million, eight hundred fifty-nine thousand, nine hundred eighty-eight".