12001102100021 has 8 divisors (see below), whose sum is σ = 12527194095360. Its totient is φ = 11475368850352.

The previous prime is 12001102100011. The next prime is 12001102100023. The reversal of 12001102100021 is 12000120110021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12001102100021 - 2⁶ = 12001102099957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001102099975 and 12001102100011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001102100023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89618045 + ... + 89751858.

It is an arithmetic number, because the mean of its divisors is an integer number (1565899261920).

Almost surely, 2^{12001102100021} is an apocalyptic number.

It is an amenable number.

12001102100021 is a deficient number, since it is larger than the sum of its proper divisors (526091995339).

12001102100021 is a wasteful number, since it uses less digits than its factorization.

12001102100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179372835.

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

Adding to 12001102100021 its reverse (12000120110021), we get a palindrome (24001222210042).

The spelling of 12001102100021 in words is "twelve trillion, one billion, one hundred two million, one hundred thousand, twenty-one".