11211121021112 has 16 divisors (see below), whose sum is σ = 21417471762840. Its totient is φ = 5499795217696.

The previous prime is 11211121021103. The next prime is 11211121021141. The reversal of 11211121021112 is 21112012111211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13220661158 + ... + 13220662005.

Almost surely, 2^{11211121021112} is an apocalyptic number.

It is an amenable number.

11211121021112 is a deficient number, since it is larger than the sum of its proper divisors (10206350741728).

11211121021112 is a wasteful number, since it uses less digits than its factorization.

11211121021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26441323222 (or 26441323218 counting only the distinct ones).

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

Adding to 11211121021112 its reverse (21112012111211), we get a palindrome (32323133132323).

The spelling of 11211121021112 in words is "eleven trillion, two hundred eleven billion, one hundred twenty-one million, twenty-one thousand, one hundred twelve".