12102001220001 has 32 divisors (see below), whose sum is σ = 20992291227648. Its totient is φ = 6013416752640.

The previous prime is 12102001219993. The next prime is 12102001220051. The reversal of 12102001220001 is 10002210020121.

It is not a de Polignac number, because 12102001220001 - 2³ = 12102001219993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12102001220051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1138899376 + ... + 1138910001.

It is an arithmetic number, because the mean of its divisors is an integer number (656009100864).

Almost surely, 2^{12102001220001} is an apocalyptic number.

12102001220001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12102001220001 is a deficient number, since it is larger than the sum of its proper divisors (8890290007647).

12102001220001 is a wasteful number, since it uses less digits than its factorization.

12102001220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277809421.

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

Adding to 12102001220001 its reverse (10002210020121), we get a palindrome (22104211240122).

The spelling of 12102001220001 in words is "twelve trillion, one hundred two billion, one million, two hundred twenty thousand, one".