12020020101001 has 4 divisors (see below), whose sum is σ = 13112749201104. Its totient is φ = 10927291000900.

The previous prime is 12020020100947. The next prime is 12020020101071. The reversal of 12020020101001 is 10010102002021.

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 12020020101001 - 2¹⁵ = 12020020068233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020020101071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546364550035 + ... + 546364550056.

It is an arithmetic number, because the mean of its divisors is an integer number (3278187300276).

Almost surely, 2^{12020020101001} is an apocalyptic number.

12020020101001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12020020101001 is a deficient number, since it is larger than the sum of its proper divisors (1092729100103).

12020020101001 is a wasteful number, since it uses less digits than its factorization.

12020020101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092729100102.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12020020101001 its reverse (10010102002021), we get a palindrome (22030122103022).

The spelling of 12020020101001 in words is "twelve trillion, twenty billion, twenty million, one hundred one thousand, one".