221012001112 has 16 divisors (see below), whose sum is σ = 473597145360. Its totient is φ = 94719429024.

The previous prime is 221012001083. The next prime is 221012001127. The reversal of 221012001112 is 211100210122.

221012001112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221012001092 and 221012001101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1973321383 + ... + 1973321494.

It is an arithmetic number, because the mean of its divisors is an integer number (29599821585).

Almost surely, 2^221012001112 is an apocalyptic number.

It is an amenable number.

221012001112 is an abundant number, since it is smaller than the sum of its proper divisors (252585144248).

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

221012001112 is a wasteful number, since it uses less digits than its factorization.

221012001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3946642890 (or 3946642886 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221012001112 its reverse (211100210122), we get a palindrome (432112211234).

The spelling of 221012001112 in words is "two hundred twenty-one billion, twelve million, one thousand, one hundred twelve".