4022520212 has 24 divisors (see below), whose sum is σ = 7519467816. Its totient is φ = 1876195328.

The previous prime is 4022520211. The next prime is 4022520223. The reversal of 4022520212 is 2120252204.

It can be written as a sum of positive squares in 4 ways, for example, as 1070336656 + 2952183556 = 32716^2 + 54334^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4022520211) 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, 254063 + ... + 269430.

It is an arithmetic number, because the mean of its divisors is an integer number (313311159).

Almost surely, 2^4022520212 is an apocalyptic number.

It is an amenable number.

4022520212 is a deficient number, since it is larger than the sum of its proper divisors (3496947604).

4022520212 is a wasteful number, since it uses less digits than its factorization.

4022520212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523627 (or 523625 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 4022520212 is about 63423.3412238744. The cubic root of 4022520212 is about 1590.3745293368.

Adding to 4022520212 its reverse (2120252204), we get a palindrome (6142772416).

The spelling of 4022520212 in words is "four billion, twenty-two million, five hundred twenty thousand, two hundred twelve".