2221112028 has 24 divisors (see below), whose sum is σ = 5255591040. Its totient is φ = 729942640.

The previous prime is 2221112021. The next prime is 2221112039. The reversal of 2221112028 is 8202111222.

2221112028 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 junction number, because it is equal to n+sod(n) for n = 2221111995 and 2221112013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221112021) 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, 1302618 + ... + 1304321.

It is an arithmetic number, because the mean of its divisors is an integer number (218982960).

Almost surely, 2^2221112028 is an apocalyptic number.

It is an amenable number.

2221112028 is an abundant number, since it is smaller than the sum of its proper divisors (3034479012).

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

2221112028 is a wasteful number, since it uses less digits than its factorization.

2221112028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607017 (or 2607015 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 2221112028 is about 47128.6752200823. The cubic root of 2221112028 is about 1304.7385310188.

The spelling of 2221112028 in words is "two billion, two hundred twenty-one million, one hundred twelve thousand, twenty-eight".