400220044422 has 16 divisors (see below), whose sum is σ = 873207369792. Its totient is φ = 121278801320.

The previous prime is 400220044417. The next prime is 400220044439. The reversal of 400220044422 is 224440022004.

It is a junction number, because it is equal to n+sod(n) for n = 400220044392 and 400220044401.

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, 3031969968 + ... + 3031970099.

It is an arithmetic number, because the mean of its divisors is an integer number (54575460612).

Almost surely, 2^400220044422 is an apocalyptic number.

400220044422 is an abundant number, since it is smaller than the sum of its proper divisors (472987325370).

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

400220044422 is a wasteful number, since it uses less digits than its factorization.

400220044422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6063940083.

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

Adding to 400220044422 its reverse (224440022004), we get a palindrome (624660066426).

The spelling of 400220044422 in words is "four hundred billion, two hundred twenty million, forty-four thousand, four hundred twenty-two".