2121112202112 has 96 divisors (see below), whose sum is σ = 6164154533160. Its totient is φ = 700036992000.

The previous prime is 2121112202089. The next prime is 2121112202147. The reversal of 2121112202112 is 2112022111212.

2121112202112 is a `hidden beast` number, since 21 + 211 + 1 + 220 + 211 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8998714 + ... + 9231417.

Almost surely, 2^{2121112202112} is an apocalyptic number.

It is an amenable number.

2121112202112 is an abundant number, since it is smaller than the sum of its proper divisors (4043042331048).

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

2121112202112 is a wasteful number, since it uses less digits than its factorization.

2121112202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18230252 (or 18230237 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2121112202112 its reverse (2112022111212), we get a palindrome (4233134313324).

The spelling of 2121112202112 in words is "two trillion, one hundred twenty-one billion, one hundred twelve million, two hundred two thousand, one hundred twelve".