12212112211011 has 48 divisors (see below), whose sum is σ = 18519963171840. Its totient is φ = 7744156056000.

The previous prime is 12212112211003. The next prime is 12212112211051. The reversal of 12212112211011 is 11011221121221.

It is a happy number.

12212112211011 is a `hidden beast` number, since 1 + 221 + 211 + 221 + 1 + 0 + 11 = 666.

12212112211011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12212112211011 - 2³ = 12212112211003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12212112211001) 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, 126553321 + ... + 126649781.

It is an arithmetic number, because the mean of its divisors is an integer number (385832566080).

Almost surely, 2^{12212112211011} is an apocalyptic number.

12212112211011 is a deficient number, since it is larger than the sum of its proper divisors (6307850960829).

12212112211011 is a wasteful number, since it uses less digits than its factorization.

12212112211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104248 (or 104245 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 12212112211011 its reverse (11011221121221), we get a palindrome (23223333332232).

The spelling of 12212112211011 in words is "twelve trillion, two hundred twelve billion, one hundred twelve million, two hundred eleven thousand, eleven".