2181538062112 has 48 divisors (see below), whose sum is σ = 4468357619712. Its totient is φ = 1047271196160.

The previous prime is 2181538062107. The next prime is 2181538062161. The reversal of 2181538062112 is 2112608351812.

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, 8532013 + ... + 8783980.

It is an arithmetic number, because the mean of its divisors is an integer number (93090783744).

Almost surely, 2^{2181538062112} is an apocalyptic number.

It is an amenable number.

2181538062112 is an abundant number, since it is smaller than the sum of its proper divisors (2286819557600).

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

2181538062112 is a wasteful number, since it uses less digits than its factorization.

2181538062112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17316161 (or 17316153 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 40.

The spelling of 2181538062112 in words is "two trillion, one hundred eighty-one billion, five hundred thirty-eight million, sixty-two thousand, one hundred twelve".