10200321323221 has 2 divisors, whose sum is σ = 10200321323222. Its totient is φ = 10200321323220.

The previous prime is 10200321323197. The next prime is 10200321323243. The reversal of 10200321323221 is 12232312300201.

10200321323221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (10200321323243) can be obtained adding 10200321323221 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10186859522596 + 13461800625 = 3191686^2 + 116025^2 .

It is a cyclic number.

It is not a de Polignac number, because 10200321323221 - 2⁴³ = 1404228301013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10200321323192 and 10200321323201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10200321323821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100160661610 + 5100160661611.

It is an arithmetic number, because the mean of its divisors is an integer number (5100160661611).

Almost surely, 2^{10200321323221} is an apocalyptic number.

It is an amenable number.

10200321323221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10200321323221 is an equidigital number, since it uses as much as digits as its factorization.

10200321323221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 10200321323221 its reverse (12232312300201), we get a palindrome (22432633623422).

The spelling of 10200321323221 in words is "ten trillion, two hundred billion, three hundred twenty-one million, three hundred twenty-three thousand, two hundred twenty-one".