221636585636112 has 40 divisors (see below), whose sum is σ = 577912218634656. Its totient is φ = 73188405223936.

The previous prime is 221636585636111. The next prime is 221636585636131. The reversal of 221636585636112 is 211636585636122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221636585636111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21576765273 + ... + 21576775544.

Almost surely, 2^{221636585636112} is an apocalyptic number.

It is an amenable number.

221636585636112 is an abundant number, since it is smaller than the sum of its proper divisors (356275632998544).

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

221636585636112 is a wasteful number, since it uses less digits than its factorization.

221636585636112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43153540935 (or 43153540929 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 57.

The spelling of 221636585636112 in words is "two hundred twenty-one trillion, six hundred thirty-six billion, five hundred eighty-five million, six hundred thirty-six thousand, one hundred twelve".