21101122201112 has 16 divisors (see below), whose sum is σ = 39769602078840. Its totient is φ = 10495894980096.

The previous prime is 21101122201099. The next prime is 21101122201121. The reversal of 21101122201112 is 21110222110112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6833263418 + ... + 6833266505.

Almost surely, 2^{21101122201112} is an apocalyptic number.

It is an amenable number.

21101122201112 is a deficient number, since it is larger than the sum of its proper divisors (18668479877728).

21101122201112 is a wasteful number, since it uses less digits than its factorization.

21101122201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13666530122 (or 13666530118 counting only the distinct ones).

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

Adding to 21101122201112 its reverse (21110222110112), we get a palindrome (42211344311224).

The spelling of 21101122201112 in words is "twenty-one trillion, one hundred one billion, one hundred twenty-two million, two hundred one thousand, one hundred twelve".