220021123233 has 4 divisors (see below), whose sum is σ = 293361497648. Its totient is φ = 146680748820.

The previous prime is 220021123183. The next prime is 220021123241. The reversal of 220021123233 is 332321120022.

It is a happy number.

220021123233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 220021123233 - 2⁶ = 220021123169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220021123433) 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 3 ways as a sum of consecutive naturals, for example, 36670187203 + ... + 36670187208.

It is an arithmetic number, because the mean of its divisors is an integer number (73340374412).

Almost surely, 2^220021123233 is an apocalyptic number.

It is an amenable number.

220021123233 is a deficient number, since it is larger than the sum of its proper divisors (73340374415).

220021123233 is an equidigital number, since it uses as much as digits as its factorization.

220021123233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73340374414.

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

Adding to 220021123233 its reverse (332321120022), we get a palindrome (552342243255).

The spelling of 220021123233 in words is "two hundred twenty billion, twenty-one million, one hundred twenty-three thousand, two hundred thirty-three".