4021242223424 has 14 divisors (see below), whose sum is σ = 7979652537234. Its totient is φ = 2010621111680.

The previous prime is 4021242223409. The next prime is 4021242223433. The reversal of 4021242223424 is 4243222421204.

It can be written as a sum of positive squares in only one way, i.e., 2569506409024 + 1451735814400 = 1602968^2 + 1204880^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31415954807 + ... + 31415954934.

It is an arithmetic number, because the mean of its divisors is an integer number (569975181231).

Almost surely, 2^{4021242223424} is an apocalyptic number.

It is an amenable number.

4021242223424 is a deficient number, since it is larger than the sum of its proper divisors (3958410313810).

4021242223424 is an equidigital number, since it uses as much as digits as its factorization.

4021242223424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62831909753 (or 62831909743 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 4021242223424 its reverse (4243222421204), we get a palindrome (8264464644628).

The spelling of 4021242223424 in words is "four trillion, twenty-one billion, two hundred forty-two million, two hundred twenty-three thousand, four hundred twenty-four".