4021221012441 has 16 divisors (see below), whose sum is σ = 5403561928128. Its totient is φ = 2659867328000.

The previous prime is 4021221012427. The next prime is 4021221012481. The reversal of 4021221012441 is 1442101221204.

It is a happy number.

4021221012441 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 4021221012441 - 2⁶ = 4021221012377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4021221012481) 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, 1739760 + ... + 3327041.

It is an arithmetic number, because the mean of its divisors is an integer number (337722620508).

Almost surely, 2^{4021221012441} is an apocalyptic number.

It is an amenable number.

4021221012441 is a deficient number, since it is larger than the sum of its proper divisors (1382340915687).

4021221012441 is a wasteful number, since it uses less digits than its factorization.

4021221012441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5068872.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 4021221012441 its reverse (1442101221204), we get a palindrome (5463322233645).

The spelling of 4021221012441 in words is "four trillion, twenty-one billion, two hundred twenty-one million, twelve thousand, four hundred forty-one".