221101101120012 has 96 divisors (see below), whose sum is σ = 581981747289600. Its totient is φ = 64980668662272.

The previous prime is 221101101119959. The next prime is 221101101120013. The reversal of 221101101120012 is 210021101101122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221101101119973 and 221101101120000.

It is not an unprimeable number, because it can be changed into a prime (221101101120013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 569571937 + ... + 569959992.

It is an arithmetic number, because the mean of its divisors is an integer number (6062309867600).

Almost surely, 2^{221101101120012} is an apocalyptic number.

It is an amenable number.

221101101120012 is an abundant number, since it is smaller than the sum of its proper divisors (360880646169588).

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

221101101120012 is a wasteful number, since it uses less digits than its factorization.

221101101120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139532015 (or 1139532013 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 221101101120012 its reverse (210021101101122), we get a palindrome (431122202221134).

The spelling of 221101101120012 in words is "two hundred twenty-one trillion, one hundred one billion, one hundred one million, one hundred twenty thousand, twelve".