12121368 has 64 divisors (see below), whose sum is σ = 36149760. Its totient is φ = 3311616.

The previous prime is 12121367. The next prime is 12121379. The reversal of 12121368 is 86312121.

12121368 is digitally balanced in base 2, base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

12121368 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2296 + ... + 5432.

It is an arithmetic number, because the mean of its divisors is an integer number (564840).

Almost surely, 2^12121368 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 12121368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18074880).

12121368 is an abundant number, since it is smaller than the sum of its proper divisors (24028392).

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

12121368 is a wasteful number, since it uses less digits than its factorization.

12121368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176 (or 3172 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

The square root of 12121368 is about 3481.5755054285. The cubic root of 12121368 is about 229.7121035517.

Adding to 12121368 its reverse (86312121), we get a palindrome (98433489).

The spelling of 12121368 in words is "twelve million, one hundred twenty-one thousand, three hundred sixty-eight".