400400224222 has 32 divisors (see below), whose sum is σ = 646784344224. Its totient is φ = 185211571200.

The previous prime is 400400224193. The next prime is 400400224243. The reversal of 400400224222 is 222422004004.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 400400224193 and 400400224202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3095322 + ... + 3222082.

It is an arithmetic number, because the mean of its divisors is an integer number (20212010757).

Almost surely, 2^400400224222 is an apocalyptic number.

400400224222 is a deficient number, since it is larger than the sum of its proper divisors (246384120002).

400400224222 is a wasteful number, since it uses less digits than its factorization.

400400224222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128364.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 400400224222 its reverse (222422004004), we get a palindrome (622822228226).

The spelling of 400400224222 in words is "four hundred billion, four hundred million, two hundred twenty-four thousand, two hundred twenty-two".