20000300131221 has 16 divisors (see below), whose sum is σ = 28287909586368. Its totient is φ = 12526011590400.

The previous prime is 20000300131181. The next prime is 20000300131351. The reversal of 20000300131221 is 12213100300002.

It is not a de Polignac number, because 20000300131221 - 2¹³ = 20000300123029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20000300131221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000300132221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362414875 + ... + 362470056.

It is an arithmetic number, because the mean of its divisors is an integer number (1767994349148).

Almost surely, 2^{20000300131221} is an apocalyptic number.

It is an amenable number.

20000300131221 is a deficient number, since it is larger than the sum of its proper divisors (8287609455147).

20000300131221 is a wasteful number, since it uses less digits than its factorization.

20000300131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724885492.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20000300131221 its reverse (12213100300002), we get a palindrome (32213400431223).

The spelling of 20000300131221 in words is "twenty trillion, three hundred million, one hundred thirty-one thousand, two hundred twenty-one".