220304121 has 8 divisors (see below), whose sum is σ = 294696864. Its totient is φ = 146390400.

The previous prime is 220304113. The next prime is 220304131. The reversal of 220304121 is 121403022.

220304121 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 220304121 - 2³ = 220304113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220304121.

It is not an unprimeable number, because it can be changed into a prime (220304101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118680 + ... + 120521.

It is an arithmetic number, because the mean of its divisors is an integer number (36837108).

Almost surely, 2^220304121 is an apocalyptic number.

It is an amenable number.

220304121 is a deficient number, since it is larger than the sum of its proper divisors (74392743).

220304121 is a wasteful number, since it uses less digits than its factorization.

220304121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239511.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 220304121 is about 14842.6453504758. The cubic root of 220304121 is about 603.9591154365.

Adding to 220304121 its reverse (121403022), we get a palindrome (341707143).

The spelling of 220304121 in words is "two hundred twenty million, three hundred four thousand, one hundred twenty-one".