2220221112 has 64 divisors (see below), whose sum is σ = 5745745920. Its totient is φ = 714365568.

The previous prime is 2220221099. The next prime is 2220221123. The reversal of 2220221112 is 2111220222.

It is a junction number, because it is equal to n+sod(n) for n = 2220221091 and 2220221100.

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, 102933 + ... + 122619.

It is an arithmetic number, because the mean of its divisors is an integer number (89777280).

Almost surely, 2^2220221112 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 2220221112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2872872960).

2220221112 is an abundant number, since it is smaller than the sum of its proper divisors (3525524808).

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

2220221112 is a wasteful number, since it uses less digits than its factorization.

2220221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19860 (or 19856 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2220221112 is about 47119.2223195587. Note that the first 3 decimals coincide. The cubic root of 2220221112 is about 1304.5640586715.

Adding to 2220221112 its reverse (2111220222), we get a palindrome (4331441334).

The spelling of 2220221112 in words is "two billion, two hundred twenty million, two hundred twenty-one thousand, one hundred twelve".