4021220221204 has 24 divisors (see below), whose sum is σ = 7141209868800. Its totient is φ = 1980913908960.

The previous prime is 4021220221177. The next prime is 4021220221229.

4021220221204 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4511139 + ... + 5328490.

It is an arithmetic number, because the mean of its divisors is an integer number (297550411200).

Almost surely, 2^{4021220221204} is an apocalyptic number.

It is an amenable number.

4021220221204 is a deficient number, since it is larger than the sum of its proper divisors (3119989647596).

4021220221204 is a wasteful number, since it uses less digits than its factorization.

4021220221204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9841143 (or 9841141 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Multiplying 4021220221204 by its sum of digits (22), we get a palindrome (88466844866488).

It can be divided in two parts, 4021220 and 221204, that added together give a palindrome (4242424).

The spelling of 4021220221204 in words is "four trillion, twenty-one billion, two hundred twenty million, two hundred twenty-one thousand, two hundred four".