220332231021 has 8 divisors (see below), whose sum is σ = 335744352064. Its totient is φ = 125904132000.

The previous prime is 220332230927. The next prime is 220332231127. The reversal of 220332231021 is 120132233022.

It is a happy number.

220332231021 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 not a de Polignac number, because 220332231021 - 2²² = 220328036717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 10492011001 = 220332231021 / (2 + 2 + 0 + 3 + 3 + 2 + 2 + 3 + 1 + 0 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220332231521) 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, 5246005480 + ... + 5246005521.

It is an arithmetic number, because the mean of its divisors is an integer number (41968044008).

Almost surely, 2^220332231021 is an apocalyptic number.

220332231021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

220332231021 is a deficient number, since it is larger than the sum of its proper divisors (115412121043).

220332231021 is a wasteful number, since it uses less digits than its factorization.

220332231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10492011011.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 220332231021 its reverse (120132233022), we get a palindrome (340464464043).

The spelling of 220332231021 in words is "two hundred twenty billion, three hundred thirty-two million, two hundred thirty-one thousand, twenty-one".