220132321121 has 4 divisors (see below), whose sum is σ = 220237700100. Its totient is φ = 220026942144.

The previous prime is 220132321093. The next prime is 220132321133. The reversal of 220132321121 is 121123231022.

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 148447613521 + 71684707600 = 385289^2 + 267740^2 .

It is a cyclic number.

It is not a de Polignac number, because 220132321121 - 2¹⁸ = 220132058977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 220132321093 and 220132321102.

It is not an unprimeable number, because it can be changed into a prime (220132321151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52686356 + ... + 52690533.

It is an arithmetic number, because the mean of its divisors is an integer number (55059425025).

Almost surely, 2^220132321121 is an apocalyptic number.

It is an amenable number.

220132321121 is a deficient number, since it is larger than the sum of its proper divisors (105378979).

220132321121 is a wasteful number, since it uses less digits than its factorization.

220132321121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105378978.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 220132321121 its reverse (121123231022), we get a palindrome (341255552143).

Subtracting from 220132321121 its reverse (121123231022), we obtain a palindrome (99009090099).

The spelling of 220132321121 in words is "two hundred twenty billion, one hundred thirty-two million, three hundred twenty-one thousand, one hundred twenty-one".