20102200133321 has 2 divisors, whose sum is σ = 20102200133322. Its totient is φ = 20102200133320.

The previous prime is 20102200133303. The next prime is 20102200133333. The reversal of 20102200133321 is 12333100220102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19432403568400 + 669796564921 = 4408220^2 + 818411^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102200133321 - 2¹⁴ = 20102200116937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20102200133293 and 20102200133302.

It is not a weakly prime, because it can be changed into another prime (20102200130321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051100066660 + 10051100066661.

It is an arithmetic number, because the mean of its divisors is an integer number (10051100066661).

Almost surely, 2^{20102200133321} is an apocalyptic number.

It is an amenable number.

20102200133321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102200133321 is an equidigital number, since it uses as much as digits as its factorization.

20102200133321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20102200133321 its reverse (12333100220102), we get a palindrome (32435300353423).

The spelling of 20102200133321 in words is "twenty trillion, one hundred two billion, two hundred million, one hundred thirty-three thousand, three hundred twenty-one".