2221112122 has 16 divisors (see below), whose sum is σ = 3508552800. Its totient is φ = 1051645680.

The previous prime is 2221112119. The next prime is 2221112123. The reversal of 2221112122 is 2212111222.

It is a happy number.

2221112122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 2221112096 and 2221112105.

It is not an unprimeable number, because it can be changed into a prime (2221112123) 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, 84972 + ... + 107992.

It is an arithmetic number, because the mean of its divisors is an integer number (219284550).

Almost surely, 2^2221112122 is an apocalyptic number.

2221112122 is a deficient number, since it is larger than the sum of its proper divisors (1287440678).

2221112122 is a wasteful number, since it uses less digits than its factorization.

2221112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25581.

The product of its digits is 64, while the sum is 16.

The square root of 2221112122 is about 47128.6762173520. The cubic root of 2221112122 is about 1304.7385494248.

Adding to 2221112122 its reverse (2212111222), we get a palindrome (4433223344).

The spelling of 2221112122 in words is "two billion, two hundred twenty-one million, one hundred twelve thousand, one hundred twenty-two".