10001021201201 has 4 divisors (see below), whose sum is σ = 10001169627504. Its totient is φ = 10000872774900.

The previous prime is 10001021201167. The next prime is 10001021201257. The reversal of 10001021201201 is 10210212010001.

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 a de Polignac number, because none of the positive numbers 2^k-10001021201201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10001021251201) 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, 74112035 + ... + 74246856.

It is an arithmetic number, because the mean of its divisors is an integer number (2500292406876).

Almost surely, 2^{10001021201201} is an apocalyptic number.

It is an amenable number.

10001021201201 is a deficient number, since it is larger than the sum of its proper divisors (148426303).

10001021201201 is an equidigital number, since it uses as much as digits as its factorization.

10001021201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148426302.

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

Adding to 10001021201201 its reverse (10210212010001), we get a palindrome (20211233211202).

The spelling of 10001021201201 in words is "ten trillion, one billion, twenty-one million, two hundred one thousand, two hundred one".