121300221 has 8 divisors (see below), whose sum is σ = 184838464. Its totient is φ = 69314400.

The previous prime is 121300159. The next prime is 121300261. The reversal of 121300221 is 122003121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121300221 - 2¹⁴ = 121283837 is a prime.

It is a super-2 number, since 2×121300221² = 29427487229297682, which contains 22 as substring.

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 = 121300197 and 121300206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121300261) 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, 2888080 + ... + 2888121.

It is an arithmetic number, because the mean of its divisors is an integer number (23104808).

Almost surely, 2^121300221 is an apocalyptic number.

It is an amenable number.

121300221 is a deficient number, since it is larger than the sum of its proper divisors (63538243).

121300221 is an equidigital number, since it uses as much as digits as its factorization.

121300221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5776211.

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

The square root of 121300221 is about 11013.6379548267. The cubic root of 121300221 is about 495.0174751508.

Adding to 121300221 its reverse (122003121), we get a palindrome (243303342).

The spelling of 121300221 in words is "one hundred twenty-one million, three hundred thousand, two hundred twenty-one".