12011012121213 has 48 divisors (see below), whose sum is σ = 20033318148480. Its totient is φ = 6792269395968.

The previous prime is 12011012121149. The next prime is 12011012121253. The reversal of 12011012121213 is 31212121011021.

It is a happy number.

It is not a de Polignac number, because 12011012121213 - 2⁶ = 12011012121149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011012121253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122042481 + ... + 122140857.

It is an arithmetic number, because the mean of its divisors is an integer number (417360794760).

Almost surely, 2^{12011012121213} is an apocalyptic number.

It is an amenable number.

12011012121213 is a deficient number, since it is larger than the sum of its proper divisors (8022306027267).

12011012121213 is a wasteful number, since it uses less digits than its factorization.

12011012121213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118466 (or 118463 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 12011012121213 its reverse (31212121011021), we get a palindrome (43223133132234).

The spelling of 12011012121213 in words is "twelve trillion, eleven billion, twelve million, one hundred twenty-one thousand, two hundred thirteen".