4511222012 has 24 divisors (see below), whose sum is σ = 8614058880. Its totient is φ = 2050144560.

The previous prime is 4511222011. The next prime is 4511222029. The reversal of 4511222012 is 2102221154.

It is a super-2 number, since 2×4511222012² = 40702248083106656288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4511222011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369713 + ... + 381719.

It is an arithmetic number, because the mean of its divisors is an integer number (358919120).

Almost surely, 2^4511222012 is an apocalyptic number.

It is an amenable number.

4511222012 is a deficient number, since it is larger than the sum of its proper divisors (4102836868).

4511222012 is a wasteful number, since it uses less digits than its factorization.

4511222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20561 (or 20559 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 4511222012 is about 67165.6311814309. The cubic root of 4511222012 is about 1652.3348654872.

Adding to 4511222012 its reverse (2102221154), we get a palindrome (6613443166).

The spelling of 4511222012 in words is "four billion, five hundred eleven million, two hundred twenty-two thousand, twelve".