12011012121212 has 48 divisors (see below), whose sum is σ = 23223038361600. Its totient is φ = 5400486641088.

The previous prime is 12011012121149. The next prime is 12011012121253. The reversal of 12011012121212 is 21212121011021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6156212 + ... + 7868987.

It is an arithmetic number, because the mean of its divisors is an integer number (483813299200).

Almost surely, 2^{12011012121212} is an apocalyptic number.

It is an amenable number.

12011012121212 is a deficient number, since it is larger than the sum of its proper divisors (11212026240388).

12011012121212 is a wasteful number, since it uses less digits than its factorization.

12011012121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14025642 (or 14025640 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12011012121212 its reverse (21212121011021), we get a palindrome (33223133132233).

The spelling of 12011012121212 in words is "twelve trillion, eleven billion, twelve million, one hundred twenty-one thousand, two hundred twelve".