221120112210012 has 48 divisors (see below), whose sum is σ = 573327453888000. Its totient is φ = 73699878354480.

The previous prime is 221120112210007. The next prime is 221120112210037. The reversal of 221120112210012 is 210012211021122.

221120112210012 is a `hidden beast` number, since 221 + 120 + 112 + 210 + 0 + 1 + 2 = 666.

221120112210012 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 93629914 + ... + 95962497.

It is an arithmetic number, because the mean of its divisors is an integer number (11944321956000).

Almost surely, 2^{221120112210012} is an apocalyptic number.

It is an amenable number.

221120112210012 is an abundant number, since it is smaller than the sum of its proper divisors (352207341677988).

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

221120112210012 is a wasteful number, since it uses less digits than its factorization.

221120112210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189603223 (or 189603215 counting only the distinct ones).

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

Adding to 221120112210012 its reverse (210012211021122), we get a palindrome (431132323231134).

The spelling of 221120112210012 in words is "two hundred twenty-one trillion, one hundred twenty billion, one hundred twelve million, two hundred ten thousand, twelve".