4021221012324 has 48 divisors (see below), whose sum is σ = 9791004625920. Its totient is φ = 1282101509920.

The previous prime is 4021221012323. The next prime is 4021221012377. The reversal of 4021221012324 is 4232101221204.

It is a junction number, because it is equal to n+sod(n) for n = 4021221012294 and 4021221012303.

It is not an unprimeable number, because it can be changed into a prime (4021221012323) 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, 16154689 + ... + 16401719.

It is an arithmetic number, because the mean of its divisors is an integer number (203979263040).

Almost surely, 2^{4021221012324} is an apocalyptic number.

It is an amenable number.

4021221012324 is an abundant number, since it is smaller than the sum of its proper divisors (5769783613596).

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

4021221012324 is a wasteful number, since it uses less digits than its factorization.

4021221012324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306040 (or 306038 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 4021221012324 its reverse (4232101221204), we get a palindrome (8253322233528).

The spelling of 4021221012324 in words is "four trillion, twenty-one billion, two hundred twenty-one million, twelve thousand, three hundred twenty-four".