400244022222 has 32 divisors (see below), whose sum is σ = 896861303424. Its totient is φ = 118008064800.

The previous prime is 400244022197. The next prime is 400244022223. The reversal of 400244022222 is 222220442004.

It is a junction number, because it is equal to n+sod(n) for n = 400244022192 and 400244022201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400244022223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81947604 + ... + 81952487.

It is an arithmetic number, because the mean of its divisors is an integer number (28026915732).

Almost surely, 2^400244022222 is an apocalyptic number.

400244022222 is an abundant number, since it is smaller than the sum of its proper divisors (496617281202).

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

400244022222 is a wasteful number, since it uses less digits than its factorization.

400244022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163900144.

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

Adding to 400244022222 its reverse (222220442004), we get a palindrome (622464464226).

The spelling of 400244022222 in words is "four hundred billion, two hundred forty-four million, twenty-two thousand, two hundred twenty-two".