4000420222 has 16 divisors (see below), whose sum is σ = 6336973440. Its totient is φ = 1890191512.

The previous prime is 4000420219. The next prime is 4000420243. The reversal of 4000420222 is 2220240004.

It is a junction number, because it is equal to n+sod(n) for n = 4000420196 and 4000420205.

It is a congruent number.

It is an unprimeable number.

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, 520072 + ... + 527707.

It is an arithmetic number, because the mean of its divisors is an integer number (396060840).

Almost surely, 2^4000420222 is an apocalyptic number.

4000420222 is a deficient number, since it is larger than the sum of its proper divisors (2336553218).

4000420222 is a wasteful number, since it uses less digits than its factorization.

4000420222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047887.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 4000420222 is about 63248.8752627270. The cubic root of 4000420222 is about 1587.4566384254.

Adding to 4000420222 its reverse (2220240004), we get a palindrome (6220660226).

The spelling of 4000420222 in words is "four billion, four hundred twenty thousand, two hundred twenty-two".