220020121233 has 40 divisors (see below), whose sum is σ = 358620942240. Its totient is φ = 133319632320.

The previous prime is 220020121183. The next prime is 220020121249. The reversal of 220020121233 is 332121020022.

220020121233 is a `hidden beast` number, since 220 + 0 + 201 + 212 + 33 = 666.

220020121233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220020121233 - 2⁶ = 220020121169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220020121283) 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 39 ways as a sum of consecutive naturals, for example, 5206453 + ... + 5248541.

It is an arithmetic number, because the mean of its divisors is an integer number (8965523556).

Almost surely, 2^220020121233 is an apocalyptic number.

It is an amenable number.

220020121233 is a deficient number, since it is larger than the sum of its proper divisors (138600821007).

220020121233 is a wasteful number, since it uses less digits than its factorization.

220020121233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47979 (or 47970 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 220020121233 its reverse (332121020022), we get a palindrome (552141141255).

The spelling of 220020121233 in words is "two hundred twenty billion, twenty million, one hundred twenty-one thousand, two hundred thirty-three".