221021121001112 has 128 divisors (see below), whose sum is σ = 427818217881600. Its totient is φ = 107010718963200.

The previous prime is 221021121001081. The next prime is 221021121001141. The reversal of 221021121001112 is 211100121120122.

221021121001112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3525757433 + ... + 3525820119.

It is an arithmetic number, because the mean of its divisors is an integer number (3342329827200).

Almost surely, 2^{221021121001112} is an apocalyptic number.

It is an amenable number.

221021121001112 is a deficient number, since it is larger than the sum of its proper divisors (206797096880488).

221021121001112 is a wasteful number, since it uses less digits than its factorization.

221021121001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63337 (or 63333 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 221021121001112 its reverse (211100121120122), we get a palindrome (432121242121234).

The spelling of 221021121001112 in words is "two hundred twenty-one trillion, twenty-one billion, one hundred twenty-one million, one thousand, one hundred twelve".