4002012222 has 16 divisors (see below), whose sum is σ = 8619718800. Its totient is φ = 1231388352.

The previous prime is 4002012169. The next prime is 4002012227. The reversal of 4002012222 is 2222102004.

It is a super-2 number, since 2×4002012222² = 32032203650074754568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002012227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25653847 + ... + 25654002.

It is an arithmetic number, because the mean of its divisors is an integer number (538732425).

Almost surely, 2^4002012222 is an apocalyptic number.

4002012222 is an abundant number, since it is smaller than the sum of its proper divisors (4617706578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4002012222 is a wasteful number, since it uses less digits than its factorization.

4002012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51307867.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 4002012222 is about 63261.4592149122. The cubic root of 4002012222 is about 1587.6671909556.

Adding to 4002012222 its reverse (2222102004), we get a palindrome (6224114226).

The spelling of 4002012222 in words is "four billion, two million, twelve thousand, two hundred twenty-two".