11227521888 has 192 divisors, whose sum is σ = 37825885440. Its totient is φ = 3202099200.

The previous prime is 11227521853. The next prime is 11227521911. The reversal of 11227521888 is 88812572211.

11227521888 is a `hidden beast` number, since 112 + 2 + 7 + 521 + 8 + 8 + 8 = 666.

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, 126823 + ... + 196313.

It is an arithmetic number, because the mean of its divisors is an integer number (197009820).

Almost surely, 2^11227521888 is an apocalyptic number.

11227521888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11227521888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18912942720).

11227521888 is an abundant number, since it is smaller than the sum of its proper divisors (26598363552).

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

11227521888 is a wasteful number, since it uses less digits than its factorization.

11227521888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69538 (or 69524 counting only the distinct ones).

The product of its digits is 143360, while the sum is 45.

The spelling of 11227521888 in words is "eleven billion, two hundred twenty-seven million, five hundred twenty-one thousand, eight hundred eighty-eight".