10100203121201 has 4 divisors (see below), whose sum is σ = 10200205132404. Its totient is φ = 10000201110000.

The previous prime is 10100203121189. The next prime is 10100203121207. The reversal of 10100203121201 is 10212130200101.

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 5981937640000 + 4118265481201 = 2445800^2 + 2029351^2 .

It is a cyclic number.

It is not a de Polignac number, because 10100203121201 - 2⁴² = 5702156610097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10100203121207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50001005450 + ... + 50001005651.

It is an arithmetic number, because the mean of its divisors is an integer number (2550051283101).

Almost surely, 2^{10100203121201} is an apocalyptic number.

It is an amenable number.

10100203121201 is a deficient number, since it is larger than the sum of its proper divisors (100002011203).

10100203121201 is a wasteful number, since it uses less digits than its factorization.

10100203121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100002011202.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 10100203121201 its reverse (10212130200101), we get a palindrome (20312333321302).

The spelling of 10100203121201 in words is "ten trillion, one hundred billion, two hundred three million, one hundred twenty-one thousand, two hundred one".