12100020020001 has 24 divisors (see below), whose sum is σ = 17696129068800. Its totient is φ = 7966275077376.

The previous prime is 12100020019973. The next prime is 12100020020041. The reversal of 12100020020001 is 10002002000121.

It is not a de Polignac number, because 12100020020001 - 2⁹ = 12100020019489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (12100020020041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14563701 + ... + 15372098.

It is an arithmetic number, because the mean of its divisors is an integer number (737338711200).

Almost surely, 2^{12100020020001} is an apocalyptic number.

It is an amenable number.

12100020020001 is a deficient number, since it is larger than the sum of its proper divisors (5596109048799).

12100020020001 is a wasteful number, since it uses less digits than its factorization.

12100020020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29936365 (or 29936362 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12100020020001 its reverse (10002002000121), we get a palindrome (22102022020122).

The spelling of 12100020020001 in words is "twelve trillion, one hundred billion, twenty million, twenty thousand, one".