4021822220404 has 24 divisors (see below), whose sum is σ = 7058411123400. Its totient is φ = 2005139103744.

The previous prime is 4021822220399. The next prime is 4021822220453. The reversal of 4021822220404 is 4040222281204.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 162554112400 + 3859268108004 = 403180^2 + 1964502^2 .

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, 2068222 + ... + 3510154.

It is an arithmetic number, because the mean of its divisors is an integer number (294100463475).

Almost surely, 2^{4021822220404} is an apocalyptic number.

It is an amenable number.

4021822220404 is a deficient number, since it is larger than the sum of its proper divisors (3036588902996).

4021822220404 is a wasteful number, since it uses less digits than its factorization.

4021822220404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443939 (or 1443937 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 31.

The spelling of 4021822220404 in words is "four trillion, twenty-one billion, eight hundred twenty-two million, two hundred twenty thousand, four hundred four".