4021423122444 has 48 divisors (see below), whose sum is σ = 11548702303488. Its totient is φ = 1060595108928.

The previous prime is 4021423122397. The next prime is 4021423122499. The reversal of 4021423122444 is 4442213241204.

4021423122444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1841309862 + ... + 1841312045.

It is an arithmetic number, because the mean of its divisors is an integer number (240597964656).

Almost surely, 2^{4021423122444} is an apocalyptic number.

It is an amenable number.

4021423122444 is an abundant number, since it is smaller than the sum of its proper divisors (7527279181044).

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

4021423122444 is a wasteful number, since it uses less digits than its factorization.

4021423122444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3682621934 (or 3682621932 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 4021423122444 its reverse (4442213241204), we get a palindrome (8463636363648).

The spelling of 4021423122444 in words is "four trillion, twenty-one billion, four hundred twenty-three million, one hundred twenty-two thousand, four hundred forty-four".