2221032012 has 12 divisors (see below), whose sum is σ = 5182408056. Its totient is φ = 740344000.

The previous prime is 2221031993. The next prime is 2221032013. The reversal of 2221032012 is 2102301222.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2221031982 and 2221032000.

It is not an unprimeable number, because it can be changed into a prime (2221032013) 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, 92542989 + ... + 92543012.

It is an arithmetic number, because the mean of its divisors is an integer number (431867338).

Almost surely, 2^2221032012 is an apocalyptic number.

It is an amenable number.

2221032012 is an abundant number, since it is smaller than the sum of its proper divisors (2961376044).

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

2221032012 is a wasteful number, since it uses less digits than its factorization.

2221032012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185086008 (or 185086006 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2221032012 is about 47127.8263025147. The cubic root of 2221032012 is about 1304.7228630095.

Adding to 2221032012 its reverse (2102301222), we get a palindrome (4323333234).

It can be divided in two parts, 222103 and 2012, that added together give a triangular number (224115 = T₆₆₉).

The spelling of 2221032012 in words is "two billion, two hundred twenty-one million, thirty-two thousand, twelve".