1213849484121 has 16 divisors (see below), whose sum is σ = 1698164657280. Its totient is φ = 769772424960.

The previous prime is 1213849484119. The next prime is 1213849484171. The reversal of 1213849484121 is 1214849483121.

It is not a de Polignac number, because 1213849484121 - 2¹ = 1213849484119 is a prime.

It is a super-2 number, since 2×1213849484121² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1213849484171) 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, 48584256 + ... + 48609233.

It is an arithmetic number, because the mean of its divisors is an integer number (106135291080).

Almost surely, 2^{1213849484121} is an apocalyptic number.

It is an amenable number.

1213849484121 is a deficient number, since it is larger than the sum of its proper divisors (484315173159).

1213849484121 is a wasteful number, since it uses less digits than its factorization.

1213849484121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97193696.

The product of its digits is 442368, while the sum is 48.

The spelling of 1213849484121 in words is "one trillion, two hundred thirteen billion, eight hundred forty-nine million, four hundred eighty-four thousand, one hundred twenty-one".