10201240110421 has 4 divisors (see below), whose sum is σ = 10201365254700. Its totient is φ = 10201114966144.

The previous prime is 10201240110377. The next prime is 10201240110449. The reversal of 10201240110421 is 12401104210201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 245391436900 + 9955848673521 = 495370^2 + 3155289^2 .

It is a cyclic number.

It is not a de Polignac number, because 10201240110421 - 2¹⁵ = 10201240077653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201240110521) 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 in 3 ways as a sum of consecutive naturals, for example, 62449786 + ... + 62612923.

It is an arithmetic number, because the mean of its divisors is an integer number (2550341313675).

Almost surely, 2^{10201240110421} is an apocalyptic number.

It is an amenable number.

10201240110421 is a deficient number, since it is larger than the sum of its proper divisors (125144279).

10201240110421 is an equidigital number, since it uses as much as digits as its factorization.

10201240110421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125144278.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 10201240110421 its reverse (12401104210201), we get a palindrome (22602344320622).

The spelling of 10201240110421 in words is "ten trillion, two hundred one billion, two hundred forty million, one hundred ten thousand, four hundred twenty-one".