4402220424221 has 4 divisors (see below), whose sum is σ = 4411410864000. Its totient is φ = 4393029984444.

The previous prime is 4402220424209. The next prime is 4402220424223. The reversal of 4402220424221 is 1224240222044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4402220424221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4402220424223) 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, 4595219171 + ... + 4595220128.

It is an arithmetic number, because the mean of its divisors is an integer number (1102852716000).

Almost surely, 2^{4402220424221} is an apocalyptic number.

It is an amenable number.

4402220424221 is a deficient number, since it is larger than the sum of its proper divisors (9190439779).

4402220424221 is an equidigital number, since it uses as much as digits as its factorization.

4402220424221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9190439778.

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 4402220424221 its reverse (1224240222044), we get a palindrome (5626460646265).

The spelling of 4402220424221 in words is "four trillion, four hundred two billion, two hundred twenty million, four hundred twenty-four thousand, two hundred twenty-one".