4021221012334 has 16 divisors (see below), whose sum is σ = 6196072353408. Its totient is φ = 1955884936032.

The previous prime is 4021221012323. The next prime is 4021221012377. The reversal of 4021221012334 is 4332101221204.

It is a junction number, because it is equal to n+sod(n) for n = 4021221012299 and 4021221012308.

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, 4964709 + ... + 5717584.

It is an arithmetic number, because the mean of its divisors is an integer number (387254522088).

Almost surely, 2^{4021221012334} is an apocalyptic number.

4021221012334 is a deficient number, since it is larger than the sum of its proper divisors (2174851341074).

4021221012334 is a wasteful number, since it uses less digits than its factorization.

4021221012334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10687419.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 4021221012334 its reverse (4332101221204), we get a palindrome (8353322233538).

The spelling of 4021221012334 in words is "four trillion, twenty-one billion, two hundred twenty-one million, twelve thousand, three hundred thirty-four".