12124222242121 has 16 divisors (see below), whose sum is σ = 13432123109376. Its totient is φ = 10851053850000.

The previous prime is 12124222242107. The next prime is 12124222242149.

It is a happy number.

12124222242121 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 12124222242121 - 2¹¹ = 12124222240073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12124222242121.

It is not an unprimeable number, because it can be changed into a prime (12124222242151) 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, 10693305 + ... + 11772646.

It is an arithmetic number, because the mean of its divisors is an integer number (839507694336).

Almost surely, 2^{12124222242121} is an apocalyptic number.

12124222242121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12124222242121 is a deficient number, since it is larger than the sum of its proper divisors (1307900867255).

12124222242121 is a wasteful number, since it uses less digits than its factorization.

12124222242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22466724.

The product of its digits is 4096, while the sum is 28.

It can be divided in two parts, 1212422 and 2242121, that added together give a palindrome (3454543).

The spelling of 12124222242121 in words is "twelve trillion, one hundred twenty-four billion, two hundred twenty-two million, two hundred forty-two thousand, one hundred twenty-one".