4434320220021 has 32 divisors (see below), whose sum is σ = 6903818683520. Its totient is φ = 2809424725632.

The previous prime is 4434320219999. The next prime is 4434320220073. The reversal of 4434320220021 is 1200220234344.

4434320220021 is a `hidden beast` number, since 4 + 4 + 3 + 432 + 0 + 2 + 200 + 21 = 666.

It is not a de Polignac number, because 4434320220021 - 2¹⁷ = 4434320088949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4434320220821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51570520 + ... + 51656433.

It is an arithmetic number, because the mean of its divisors is an integer number (215744333860).

Almost surely, 2^{4434320220021} is an apocalyptic number.

It is an amenable number.

4434320220021 is a deficient number, since it is larger than the sum of its proper divisors (2469498463499).

4434320220021 is a wasteful number, since it uses less digits than its factorization.

4434320220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103227042 (or 103227036 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 4434320220021 its reverse (1200220234344), we get a palindrome (5634540454365).

The spelling of 4434320220021 in words is "four trillion, four hundred thirty-four billion, three hundred twenty million, two hundred twenty thousand, twenty-one".