10212221202013 has 2 divisors, whose sum is σ = 10212221202014. Its totient is φ = 10212221202012.

The previous prime is 10212221202011. The next prime is 10212221202047. The reversal of 10212221202013 is 31020212221201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6034947431769 + 4177273770244 = 2456613^2 + 2043838^2 .

It is a cyclic number.

It is not a de Polignac number, because 10212221202013 - 2¹ = 10212221202011 is a prime.

Together with 10212221202011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10212221202011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106110601006 + 5106110601007.

It is an arithmetic number, because the mean of its divisors is an integer number (5106110601007).

Almost surely, 2^{10212221202013} is an apocalyptic number.

It is an amenable number.

10212221202013 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212221202013 is an equidigital number, since it uses as much as digits as its factorization.

10212221202013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 10212221202013 its reverse (31020212221201), we get a palindrome (41232433423214).

The spelling of 10212221202013 in words is "ten trillion, two hundred twelve billion, two hundred twenty-one million, two hundred two thousand, thirteen".