2221112 has 8 divisors (see below), whose sum is σ = 4164600. Its totient is φ = 1110552.

The previous prime is 2221111. The next prime is 2221127. The reversal of 2221112 is 2111222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2221093 and 2221102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138812 + ... + 138827.

It is an arithmetic number, because the mean of its divisors is an integer number (520575).

2^2221112 is an apocalyptic number.

It is an amenable number.

2221112 is a deficient number, since it is larger than the sum of its proper divisors (1943488).

2221112 is a wasteful number, since it uses less digits than its factorization.

2221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277645 (or 277641 counting only the distinct ones).

The product of its digits is 16, while the sum is 11.

The square root of 2221112 is about 1490.3395586241. The cubic root of 2221112 is about 130.4738525536.

Adding to 2221112 its reverse (2111222), we get a palindrome (4332334).

It can be divided in two parts, 22 and 21112, that multiplied together give a palindrome (464464).

The spelling of 2221112 in words is "two million, two hundred twenty-one thousand, one hundred twelve".