12021220134213 has 8 divisors (see below), whose sum is σ = 16028439112800. Its totient is φ = 8014073955888.

The previous prime is 12021220134163. The next prime is 12021220134221. The reversal of 12021220134213 is 31243102212021.

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

It is not a de Polignac number, because 12021220134213 - 2¹⁸ = 12021219872069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021220134263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17813598 + ... + 18476111.

It is an arithmetic number, because the mean of its divisors is an integer number (2003554889100).

Almost surely, 2^{12021220134213} is an apocalyptic number.

It is an amenable number.

12021220134213 is a deficient number, since it is larger than the sum of its proper divisors (4007218978587).

12021220134213 is a wasteful number, since it uses less digits than its factorization.

12021220134213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36400131.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12021220134213 its reverse (31243102212021), we get a palindrome (43264322346234).

The spelling of 12021220134213 in words is "twelve trillion, twenty-one billion, two hundred twenty million, one hundred thirty-four thousand, two hundred thirteen".