2121112111102 has 8 divisors (see below), whose sum is σ = 3214468869696. Its totient is φ = 1049622487872.

The previous prime is 2121112111093. The next prime is 2121112111121. The reversal of 2121112111102 is 2011112111212.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 5466783598 + ... + 5466783985.

It is an arithmetic number, because the mean of its divisors is an integer number (401808608712).

Almost surely, 2^{2121112111102} is an apocalyptic number.

2121112111102 is a deficient number, since it is larger than the sum of its proper divisors (1093356758594).

2121112111102 is a wasteful number, since it uses less digits than its factorization.

2121112111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10933567682.

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

Adding to 2121112111102 its reverse (2011112111212), we get a palindrome (4132224222314).

The spelling of 2121112111102 in words is "two trillion, one hundred twenty-one billion, one hundred twelve million, one hundred eleven thousand, one hundred two".