10021201221061 has 2 divisors, whose sum is σ = 10021201221062. Its totient is φ = 10021201221060.

The previous prime is 10021201221049. The next prime is 10021201221167. The reversal of 10021201221061 is 16012210212001.

10021201221061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7262114118561 + 2759087102500 = 2694831^2 + 1661050^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021201221061 - 2¹⁷ = 10021201089989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10021201201061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010600610530 + 5010600610531.

It is an arithmetic number, because the mean of its divisors is an integer number (5010600610531).

Almost surely, 2^{10021201221061} is an apocalyptic number.

It is an amenable number.

10021201221061 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021201221061 is an equidigital number, since it uses as much as digits as its factorization.

10021201221061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 10021201221061 its reverse (16012210212001), we get a palindrome (26033411433062).

The spelling of 10021201221061 in words is "ten trillion, twenty-one billion, two hundred one million, two hundred twenty-one thousand, sixty-one".