2221003012 has 24 divisors (see below), whose sum is σ = 4141620504. Its totient is φ = 1038515712.

The previous prime is 2221003009. The next prime is 2221003013. The reversal of 2221003012 is 2103001222.

It can be written as a sum of positive squares in 4 ways, for example, as 5982916 + 2215020096 = 2446^2 + 47064^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2221002983 and 2221003001.

It is not an unprimeable number, because it can be changed into a prime (2221003013) 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, 93343 + ... + 114694.

It is an arithmetic number, because the mean of its divisors is an integer number (172567521).

Almost surely, 2^2221003012 is an apocalyptic number.

It is an amenable number.

2221003012 is a deficient number, since it is larger than the sum of its proper divisors (1920617492).

2221003012 is a wasteful number, since it uses less digits than its factorization.

2221003012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208215 (or 208213 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2221003012 is about 47127.5186276553. The cubic root of 2221003012 is about 1304.7171843989.

Adding to 2221003012 its reverse (2103001222), we get a palindrome (4324004234).

The spelling of 2221003012 in words is "two billion, two hundred twenty-one million, three thousand, twelve".