2221412112 has 60 divisors (see below), whose sum is σ = 6318809484. Its totient is φ = 728328960.

The previous prime is 2221412111. The next prime is 2221412159. The reversal of 2221412112 is 2112141222.

It can be written as a sum of positive squares in 2 ways, for example, as 310323456 + 1911088656 = 17616^2 + 43716^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is not an unprimeable number, because it can be changed into a prime (2221412111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117663 + ... + 135230.

Almost surely, 2^2221412112 is an apocalyptic number.

It is an amenable number.

2221412112 is an abundant number, since it is smaller than the sum of its proper divisors (4097397372).

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

2221412112 is a wasteful number, since it uses less digits than its factorization.

2221412112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252968 (or 252959 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 2221412112 is about 47131.8587793862. The cubic root of 2221412112 is about 1304.7972874017.

Adding to 2221412112 its reverse (2112141222), we get a palindrome (4333553334).

The spelling of 2221412112 in words is "two billion, two hundred twenty-one million, four hundred twelve thousand, one hundred twelve".