221120010112 has 64 divisors (see below), whose sum is σ = 454845744000. Its totient is φ = 106964582400.

The previous prime is 221120010053. The next prime is 221120010113. The reversal of 221120010112 is 211010021122.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 221120010092 and 221120010101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221120010113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25585312 + ... + 25593952.

It is an arithmetic number, because the mean of its divisors is an integer number (7106964750).

Almost surely, 2^221120010112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221120010112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227422872000).

221120010112 is an abundant number, since it is smaller than the sum of its proper divisors (233725733888).

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

221120010112 is an equidigital number, since it uses as much as digits as its factorization.

221120010112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15135 (or 15123 counting only the distinct ones).

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

Adding to 221120010112 its reverse (211010021122), we get a palindrome (432130031234).

The spelling of 221120010112 in words is "two hundred twenty-one billion, one hundred twenty million, ten thousand, one hundred twelve".