10201310221021 has 2 divisors, whose sum is σ = 10201310221022. Its totient is φ = 10201310221020.

The previous prime is 10201310221019. The next prime is 10201310221031. The reversal of 10201310221021 is 12012201310201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8916852932100 + 1284457288921 = 2986110^2 + 1133339^2 .

It is a cyclic number.

It is not a de Polignac number, because 10201310221021 - 2¹ = 10201310221019 is a prime.

Together with 10201310221019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 10201310220986 and 10201310221004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10201310221031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100655110510 + 5100655110511.

It is an arithmetic number, because the mean of its divisors is an integer number (5100655110511).

Almost surely, 2^{10201310221021} is an apocalyptic number.

It is an amenable number.

10201310221021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10201310221021 is an equidigital number, since it uses as much as digits as its factorization.

10201310221021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 10201310221021 its reverse (12012201310201), we get a palindrome (22213511531222).

The spelling of 10201310221021 in words is "ten trillion, two hundred one billion, three hundred ten million, two hundred twenty-one thousand, twenty-one".