2221012012 has 6 divisors (see below), whose sum is σ = 3886771028. Its totient is φ = 1110506004.

The previous prime is 2221011983. The next prime is 2221012033. The reversal of 2221012012 is 2102101222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2221011983 and 2221012001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277626498 + ... + 277626505.

Almost surely, 2^2221012012 is an apocalyptic number.

It is an amenable number.

2221012012 is a deficient number, since it is larger than the sum of its proper divisors (1665759016).

2221012012 is a wasteful number, since it uses less digits than its factorization.

2221012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555253007 (or 555253005 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2221012012 is about 47127.6141131715. The cubic root of 2221012012 is about 1304.7189467316.

Adding to 2221012012 its reverse (2102101222), we get a palindrome (4323113234).

The spelling of 2221012012 in words is "two billion, two hundred twenty-one million, twelve thousand, twelve".