4224021512 has 8 divisors (see below), whose sum is σ = 7920040350. Its totient is φ = 2112010752.

The previous prime is 4224021511. The next prime is 4224021517. The reversal of 4224021512 is 2151204224.

4224021512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3769223236 + 454798276 = 61394^2 + 21326^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×4224021512² = 35684715467677532288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4224021511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264001337 + ... + 264001352.

Almost surely, 2^4224021512 is an apocalyptic number.

It is an amenable number.

4224021512 is a deficient number, since it is larger than the sum of its proper divisors (3696018838).

4224021512 is a wasteful number, since it uses less digits than its factorization.

4224021512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528002695 (or 528002691 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 4224021512 is about 64992.4727333866. The cubic root of 4224021512 is about 1616.4987524095.

Adding to 4224021512 its reverse (2151204224), we get a palindrome (6375225736).

The spelling of 4224021512 in words is "four billion, two hundred twenty-four million, twenty-one thousand, five hundred twelve".