2221200012 has 12 divisors (see below), whose sum is σ = 5182800056. Its totient is φ = 740400000.

The previous prime is 2221200011. The next prime is 2221200017. The reversal of 2221200012 is 2100021222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 185100001 = 2221200012 / (2 + 2 + 2 + 1 + 2 + 0 + 0 + 0 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (2221200011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92549989 + ... + 92550012.

Almost surely, 2^2221200012 is an apocalyptic number.

It is an amenable number.

2221200012 is an abundant number, since it is smaller than the sum of its proper divisors (2961600044).

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

2221200012 is a wasteful number, since it uses less digits than its factorization.

2221200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185100008 (or 185100006 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2221200012 is about 47129.6086552817. The cubic root of 2221200012 is about 1304.7557588155.

Adding to 2221200012 its reverse (2100021222), we get a palindrome (4321221234).

The spelling of 2221200012 in words is "two billion, two hundred twenty-one million, two hundred thousand, twelve".