400044222222 has 16 divisors (see below), whose sum is σ = 821712456912. Its totient is φ = 129744072000.

The previous prime is 400044222209. The next prime is 400044222233. The reversal of 400044222222 is 222222440004.

It is a junction number, because it is equal to n+sod(n) for n = 400044222192 and 400044222201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 901000279 + ... + 901000722.

It is an arithmetic number, because the mean of its divisors is an integer number (51357028557).

Almost surely, 2^400044222222 is an apocalyptic number.

400044222222 is an abundant number, since it is smaller than the sum of its proper divisors (421668234690).

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

400044222222 is a wasteful number, since it uses less digits than its factorization.

400044222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802001043.

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

Adding to 400044222222 its reverse (222222440004), we get a palindrome (622266662226).

The spelling of 400044222222 in words is "four hundred billion, forty-four million, two hundred twenty-two thousand, two hundred twenty-two".