20112013130221 has 2 divisors, whose sum is σ = 20112013130222. Its totient is φ = 20112013130220.

The previous prime is 20112013130191. The next prime is 20112013130233. The reversal of 20112013130221 is 12203131021102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13524521104900 + 6587492025321 = 3677570^2 + 2566611^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112013130221 - 2⁵ = 20112013130189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112013130291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056006565110 + 10056006565111.

It is an arithmetic number, because the mean of its divisors is an integer number (10056006565111).

Almost surely, 2^{20112013130221} is an apocalyptic number.

It is an amenable number.

20112013130221 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112013130221 is an equidigital number, since it uses as much as digits as its factorization.

20112013130221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20112013130221 its reverse (12203131021102), we get a palindrome (32315144151323).

The spelling of 20112013130221 in words is "twenty trillion, one hundred twelve billion, thirteen million, one hundred thirty thousand, two hundred twenty-one".