400222022444 has 6 divisors (see below), whose sum is σ = 700388539284. Its totient is φ = 200111011220.

The previous prime is 400222022441. The next prime is 400222022479. The reversal of 400222022444 is 444220222004.

It is not an unprimeable number, because it can be changed into a prime (400222022441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50027752802 + ... + 50027752809.

It is an arithmetic number, because the mean of its divisors is an integer number (116731423214).

Almost surely, 2^400222022444 is an apocalyptic number.

It is an amenable number.

400222022444 is a deficient number, since it is larger than the sum of its proper divisors (300166516840).

400222022444 is a wasteful number, since it uses less digits than its factorization.

400222022444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100055505615 (or 100055505613 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 400222022444 its reverse (444220222004), we get a palindrome (844442244448).

The spelling of 400222022444 in words is "four hundred billion, two hundred twenty-two million, twenty-two thousand, four hundred forty-four".