12101240 has 32 divisors (see below), whose sum is σ = 27617760. Its totient is φ = 4771200.

The previous prime is 12101237. The next prime is 12101269. The reversal of 12101240 is 4210121.

12101240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710 + ... + 4970.

It is an arithmetic number, because the mean of its divisors is an integer number (863055).

Almost surely, 2^12101240 is an apocalyptic number.

12101240 is a gapful number since it is divisible by the number (10) 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 12101240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13808880).

12101240 is an abundant number, since it is smaller than the sum of its proper divisors (15516520).

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

12101240 is a wasteful number, since it uses less digits than its factorization.

12101240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4343 (or 4339 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 12101240 is about 3478.6836590872. The cubic root of 12101240 is about 229.5848844999.

Adding to 12101240 its reverse (4210121), we get a palindrome (16311361).

The spelling of 12101240 in words is "twelve million, one hundred one thousand, two hundred forty".