10201110221021 has 2 divisors, whose sum is σ = 10201110221022. Its totient is φ = 10201110221020.

The previous prime is 10201110220979. The next prime is 10201110221033. The reversal of 10201110221021 is 12012201110201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9842896000921 + 358214220100 = 3137339^2 + 598510^2 .

It is a cyclic number.

It is not a de Polignac number, because 10201110221021 - 2⁶ = 10201110220957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10201110220987 and 10201110221005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10201110221921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100555110510 + 5100555110511.

It is an arithmetic number, because the mean of its divisors is an integer number (5100555110511).

Almost surely, 2^{10201110221021} is an apocalyptic number.

It is an amenable number.

10201110221021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10201110221021 is an equidigital number, since it uses as much as digits as its factorization.

10201110221021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10201110221021 its reverse (12012201110201), we get a palindrome (22213311331222).

The spelling of 10201110221021 in words is "ten trillion, two hundred one billion, one hundred ten million, two hundred twenty-one thousand, twenty-one".