220044231021 has 8 divisors (see below), whose sum is σ = 293403396384. Its totient is φ = 146690609840.

The previous prime is 220044230999. The next prime is 220044231037. The reversal of 220044231021 is 120132440022.

220044231021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220044231021 - 2¹⁷ = 220044099949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220044211021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1292535 + ... + 1452836.

It is an arithmetic number, because the mean of its divisors is an integer number (36675424548).

Almost surely, 2^220044231021 is an apocalyptic number.

It is an amenable number.

220044231021 is a deficient number, since it is larger than the sum of its proper divisors (73359165363).

220044231021 is a wasteful number, since it uses less digits than its factorization.

220044231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772091.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 220044231021 its reverse (120132440022), we get a palindrome (340176671043).

The spelling of 220044231021 in words is "two hundred twenty billion, forty-four million, two hundred thirty-one thousand, twenty-one".