11212318488 has 128 divisors (see below), whose sum is σ = 33200409600. Its totient is φ = 3087404544.

The previous prime is 11212318451. The next prime is 11212318493. The reversal of 11212318488 is 88481321211.

It is a super-2 number, since 2×11212318488² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3150406 + ... + 3153962.

It is an arithmetic number, because the mean of its divisors is an integer number (259378200).

Almost surely, 2^11212318488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11212318488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16600204800).

11212318488 is an abundant number, since it is smaller than the sum of its proper divisors (21988091112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11212318488 is a wasteful number, since it uses less digits than its factorization.

11212318488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249 (or 4245 counting only the distinct ones).

The product of its digits is 24576, while the sum is 39.

Adding to 11212318488 its reverse (88481321211), we get a palindrome (99693639699).

The spelling of 11212318488 in words is "eleven billion, two hundred twelve million, three hundred eighteen thousand, four hundred eighty-eight".