221100120110012 has 48 divisors (see below), whose sum is σ = 481308858771552. Its totient is φ = 87312264622080.

The previous prime is 221100120109969. The next prime is 221100120110081. The reversal of 221100120110012 is 210011021001122.

It is a super-2 number, since 2×221100120110012² (a number of 29 digits) contains 22 as substring.

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, 11368774733 + ... + 11368794180.

It is an arithmetic number, because the mean of its divisors is an integer number (10027267891074).

Almost surely, 2^{221100120110012} is an apocalyptic number.

221100120110012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221100120110012 is an abundant number, since it is smaller than the sum of its proper divisors (260208738661540).

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

221100120110012 is a wasteful number, since it uses less digits than its factorization.

221100120110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22737568958 (or 22737568956 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221100120110012 its reverse (210011021001122), we get a palindrome (431111141111134).

The spelling of 221100120110012 in words is "two hundred twenty-one trillion, one hundred billion, one hundred twenty million, one hundred ten thousand, twelve".