12101586 has 48 divisors (see below), whose sum is σ = 29413056. Its totient is φ = 3250944.

The previous prime is 12101567. The next prime is 12101587. The reversal of 12101586 is 68510121.

It is not an unprimeable number, because it can be changed into a prime (12101587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11640 + ... + 12636.

It is an arithmetic number, because the mean of its divisors is an integer number (612772).

Almost surely, 2^12101586 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12101586, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14706528).

12101586 is an abundant number, since it is smaller than the sum of its proper divisors (17311470).

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

12101586 is a wasteful number, since it uses less digits than its factorization.

12101586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043 (or 1026 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 12101586 is about 3478.7333901867. The cubic root of 12101586 is about 229.5870725845.

The spelling of 12101586 in words is "twelve million, one hundred one thousand, five hundred eighty-six".