300121221 has 4 divisors (see below), whose sum is σ = 400161632. Its totient is φ = 200080812.

The previous prime is 300121219. The next prime is 300121229. The reversal of 300121221 is 122121003.

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 300121221 - 2¹ = 300121219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 300121197 and 300121206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300121229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50020201 + ... + 50020206.

It is an arithmetic number, because the mean of its divisors is an integer number (100040408).

Almost surely, 2^300121221 is an apocalyptic number.

It is an amenable number.

300121221 is a deficient number, since it is larger than the sum of its proper divisors (100040411).

300121221 is a wasteful number, since it uses less digits than its factorization.

300121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100040410.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 300121221 is about 17324.0070711138. The cubic root of 300121221 is about 669.5231038645.

Adding to 300121221 its reverse (122121003), we get a palindrome (422242224).

The spelling of 300121221 in words is "three hundred million, one hundred twenty-one thousand, two hundred twenty-one".