4021221012322 has 8 divisors (see below), whose sum is σ = 6032290217472. Its totient is φ = 2010457606500.

The previous prime is 4021221012311. The next prime is 4021221012323. The reversal of 4021221012322 is 2232101221204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 4021221012293 and 4021221012302.

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 3 ways as a sum of consecutive naturals, for example, 76416954 + ... + 76469557.

It is an arithmetic number, because the mean of its divisors is an integer number (754036277184).

Almost surely, 2^{4021221012322} is an apocalyptic number.

4021221012322 is a deficient number, since it is larger than the sum of its proper divisors (2011069205150).

4021221012322 is a wasteful number, since it uses less digits than its factorization.

4021221012322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152899664.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 4021221012322 its reverse (2232101221204), we get a palindrome (6253322233526).

The spelling of 4021221012322 in words is "four trillion, twenty-one billion, two hundred twenty-one million, twelve thousand, three hundred twenty-two".