11212121011112 has 32 divisors (see below), whose sum is σ = 24034948878720. Its totient is φ = 4803399662400.

The previous prime is 11212121011103. The next prime is 11212121011121. The reversal of 11212121011112 is 21111012121211.

11212121011112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11212121011103) and next prime (11212121011121).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37245764 + ... + 37545587.

It is an arithmetic number, because the mean of its divisors is an integer number (751092152460).

Almost surely, 2^{11212121011112} is an apocalyptic number.

It is an amenable number.

11212121011112 is an abundant number, since it is smaller than the sum of its proper divisors (12822827867608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11212121011112 is a wasteful number, since it uses less digits than its factorization.

11212121011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74794041 (or 74794037 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 11212121011112 its reverse (21111012121211), we get a palindrome (32323133132323).

The spelling of 11212121011112 in words is "eleven trillion, two hundred twelve billion, one hundred twenty-one million, eleven thousand, one hundred twelve".