12101020202001 has 4 divisors (see below), whose sum is σ = 16134693602672. Its totient is φ = 8067346801332.

The previous prime is 12101020201927. The next prime is 12101020202017. The reversal of 12101020202001 is 10020202010121.

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 not a de Polignac number, because 12101020202001 - 2¹⁰ = 12101020200977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12101020202501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2016836700331 + ... + 2016836700336.

It is an arithmetic number, because the mean of its divisors is an integer number (4033673400668).

Almost surely, 2^{12101020202001} is an apocalyptic number.

It is an amenable number.

12101020202001 is a deficient number, since it is larger than the sum of its proper divisors (4033673400671).

12101020202001 is an equidigital number, since it uses as much as digits as its factorization.

12101020202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033673400670.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12101020202001 its reverse (10020202010121), we get a palindrome (22121222212122).

The spelling of 12101020202001 in words is "twelve trillion, one hundred one billion, twenty million, two hundred two thousand, one".