12212112021011 has 12 divisors (see below), whose sum is σ = 14309619128568. Its totient is φ = 10391119294752.

The previous prime is 12212112020989. The next prime is 12212112021017. The reversal of 12212112021011 is 11012021121221.

12212112021011 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 12212112021011 - 2⁴² = 7814065509907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212112021017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 909580061 + ... + 909593486.

It is an arithmetic number, because the mean of its divisors is an integer number (1192468260714).

Almost surely, 2^{12212112021011} is an apocalyptic number.

12212112021011 is a deficient number, since it is larger than the sum of its proper divisors (2097507107557).

12212112021011 is a wasteful number, since it uses less digits than its factorization.

12212112021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819173698 (or 1819173691 counting only the distinct ones).

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

Adding to 12212112021011 its reverse (11012021121221), we get a palindrome (23224133142232).

The spelling of 12212112021011 in words is "twelve trillion, two hundred twelve billion, one hundred twelve million, twenty-one thousand, eleven".