12121212301 has 8 divisors (see below), whose sum is σ = 13231980000. Its totient is φ = 11011917840.

The previous prime is 12121212287. The next prime is 12121212329. The reversal of 12121212301 is 10321212121.

12121212301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12121212301 - 2¹¹ = 12121210253 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121212401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351066 + ... + 384043.

It is an arithmetic number, because the mean of its divisors is an integer number (1653997500).

Almost surely, 2^12121212301 is an apocalyptic number.

12121212301 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12121212301 is a deficient number, since it is larger than the sum of its proper divisors (1110767699).

12121212301 is a wasteful number, since it uses less digits than its factorization.

12121212301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736619.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12121212301 its reverse (10321212121), we get a palindrome (22442424422).

It can be divided in two parts, 12121 and 212301, that added together give a palindrome (224422).

The spelling of 12121212301 in words is "twelve billion, one hundred twenty-one million, two hundred twelve thousand, three hundred one".