124121221213 has 8 divisors (see below), whose sum is σ = 135713413440. Its totient is φ = 112580436480.

The previous prime is 124121221201. The next prime is 124121221229. The reversal of 124121221213 is 312122121421.

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

It is a cyclic number.

It is not a de Polignac number, because 124121221213 - 2¹⁷ = 124121090141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124121221513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12846820 + ... + 12856477.

It is an arithmetic number, because the mean of its divisors is an integer number (16964176680).

Almost surely, 2^124121221213 is an apocalyptic number.

It is an amenable number.

124121221213 is a deficient number, since it is larger than the sum of its proper divisors (11592192227).

124121221213 is a wasteful number, since it uses less digits than its factorization.

124121221213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25703747.

The product of its digits is 384, while the sum is 22.

Adding to 124121221213 its reverse (312122121421), we get a palindrome (436243342634).

The spelling of 124121221213 in words is "one hundred twenty-four billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred thirteen".