300213131221 has 4 divisors (see below), whose sum is σ = 302577014272. Its totient is φ = 297849248172.

The previous prime is 300213131171. The next prime is 300213131227. The reversal of 300213131221 is 122131312003.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122131312003 = 31873 ⋅3831811.

It is a cyclic number.

It is not a de Polignac number, because 300213131221 - 2⁷ = 300213131093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300213131227) 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, 1181941335 + ... + 1181941588.

It is an arithmetic number, because the mean of its divisors is an integer number (75644253568).

Almost surely, 2^300213131221 is an apocalyptic number.

It is an amenable number.

300213131221 is a deficient number, since it is larger than the sum of its proper divisors (2363883051).

300213131221 is a wasteful number, since it uses less digits than its factorization.

300213131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363883050.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 300213131221 its reverse (122131312003), we get a palindrome (422344443224).

The spelling of 300213131221 in words is "three hundred billion, two hundred thirteen million, one hundred thirty-one thousand, two hundred twenty-one".