12101888 has 36 divisors (see below), whose sum is σ = 24767148. Its totient is φ = 5898240.

The previous prime is 12101863. The next prime is 12101891. The reversal of 12101888 is 88810121.

It can be written as a sum of positive squares in 2 ways, for example, as 4528384 + 7573504 = 2128^2 + 2752^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12101888.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9920 + ... + 11072.

Almost surely, 2^12101888 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 12101888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12383574).

12101888 is an abundant number, since it is smaller than the sum of its proper divisors (12665260).

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

12101888 is an equidigital number, since it uses as much as digits as its factorization.

12101888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210 (or 1196 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 29.

The square root of 12101888 is about 3478.7767965191. The cubic root of 12101888 is about 229.5889823816.

The spelling of 12101888 in words is "twelve million, one hundred one thousand, eight hundred eighty-eight".