10001021202101 has 4 divisors (see below), whose sum is σ = 10435848210912. Its totient is φ = 9566194193292.

The previous prime is 10001021202089. The next prime is 10001021202131. The reversal of 10001021202101 is 10120212010001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10001021202101 - 2³⁸ = 9726143295157 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 (10001021202131) 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, 217413504371 + ... + 217413504416.

It is an arithmetic number, because the mean of its divisors is an integer number (2608962052728).

Almost surely, 2^{10001021202101} is an apocalyptic number.

It is an amenable number.

10001021202101 is a deficient number, since it is larger than the sum of its proper divisors (434827008811).

10001021202101 is an equidigital number, since it uses as much as digits as its factorization.

10001021202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434827008810.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10001021202101 its reverse (10120212010001), we get a palindrome (20121233212102).

The spelling of 10001021202101 in words is "ten trillion, one billion, twenty-one million, two hundred two thousand, one hundred one".