400442220222 has 32 divisors (see below), whose sum is σ = 911678734080. Its totient is φ = 116070208320.

The previous prime is 400442220187. The next prime is 400442220259. The reversal of 400442220222 is 222022244004.

It is a junction number, because it is equal to n+sod(n) for n = 400442220192 and 400442220201.

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, 131896447 + ... + 131899482.

It is an arithmetic number, because the mean of its divisors is an integer number (28489960440).

Almost surely, 2^400442220222 is an apocalyptic number.

400442220222 is an abundant number, since it is smaller than the sum of its proper divisors (511236513858).

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

400442220222 is a wasteful number, since it uses less digits than its factorization.

400442220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263795968.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 400442220222 its reverse (222022244004), we get a palindrome (622464464226).

The spelling of 400442220222 in words is "four hundred billion, four hundred forty-two million, two hundred twenty thousand, two hundred twenty-two".