12021100210001 has 4 divisors (see below), whose sum is σ = 12023227467504. Its totient is φ = 12018972952500.

The previous prime is 12021100209991. The next prime is 12021100210037. The reversal of 12021100210001 is 10001200112021.

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-12021100210001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021100210051) 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, 1063620275 + ... + 1063631576.

It is an arithmetic number, because the mean of its divisors is an integer number (3005806866876).

Almost surely, 2^{12021100210001} is an apocalyptic number.

It is an amenable number.

12021100210001 is a deficient number, since it is larger than the sum of its proper divisors (2127257503).

12021100210001 is an equidigital number, since it uses as much as digits as its factorization.

12021100210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127257502.

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

Adding to 12021100210001 its reverse (10001200112021), we get a palindrome (22022300322022).

The spelling of 12021100210001 in words is "twelve trillion, twenty-one billion, one hundred million, two hundred ten thousand, one".