211121171621112 has 64 divisors (see below), whose sum is σ = 551409000832800. Its totient is φ = 67274300710400.

The previous prime is 211121171621111. The next prime is 211121171621123. The reversal of 211121171621112 is 211126171121112.

It is a self number, because there is not a number n which added to its sum of digits gives 211121171621112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121171621111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1501588203 + ... + 1501728794.

Almost surely, 2^{211121171621112} is an apocalyptic number.

It is an amenable number.

211121171621112 is an abundant number, since it is smaller than the sum of its proper divisors (340287829211688).

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

211121171621112 is a wasteful number, since it uses less digits than its factorization.

211121171621112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003317136 (or 3003317132 counting only the distinct ones).

The product of its digits is 672, while the sum is 30.

The spelling of 211121171621112 in words is "two hundred eleven trillion, one hundred twenty-one billion, one hundred seventy-one million, six hundred twenty-one thousand, one hundred twelve".