220213032121 has 4 divisors (see below), whose sum is σ = 220366706292. Its totient is φ = 220059357952.

The previous prime is 220213032097. The next prime is 220213032173. The reversal of 220213032121 is 121230312022.

220213032121 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.

It can be written as a sum of positive squares in 2 ways, for example, as 201748298896 + 18464733225 = 449164^2 + 135885^2 .

It is a cyclic number.

It is not a de Polignac number, because 220213032121 - 2⁵ = 220213032089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220210032121) 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, 76834936 + ... + 76837801.

It is an arithmetic number, because the mean of its divisors is an integer number (55091676573).

Almost surely, 2^220213032121 is an apocalyptic number.

It is an amenable number.

220213032121 is a deficient number, since it is larger than the sum of its proper divisors (153674171).

220213032121 is a wasteful number, since it uses less digits than its factorization.

220213032121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153674170.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 220213032121 its reverse (121230312022), we get a palindrome (341443344143).

The spelling of 220213032121 in words is "two hundred twenty billion, two hundred thirteen million, thirty-two thousand, one hundred twenty-one".