2221222012 has 12 divisors (see below), whose sum is σ = 3927212800. Its totient is φ = 1099161216.

The previous prime is 2221222001. The next prime is 2221222043. The reversal of 2221222012 is 2102221222.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 2862012 + ... + 2862787.

Almost surely, 2^2221222012 is an apocalyptic number.

It is an amenable number.

2221222012 is a deficient number, since it is larger than the sum of its proper divisors (1705990788).

2221222012 is a wasteful number, since it uses less digits than its factorization.

2221222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724900 (or 5724898 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2221222012 is about 47129.8420536288. The cubic root of 2221222012 is about 1304.7600664768.

Adding to 2221222012 its reverse (2102221222), we get a palindrome (4323443234).

The spelling of 2221222012 in words is "two billion, two hundred twenty-one million, two hundred twenty-two thousand, twelve".