12000021121201 has 4 divisors (see below), whose sum is σ = 12079491459904. Its totient is φ = 11920550782500.

The previous prime is 12000021121189. The next prime is 12000021121267. The reversal of 12000021121201 is 10212112000021.

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 12000021121201 - 2¹¹ = 12000021119153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12000021121271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39735169125 + ... + 39735169426.

It is an arithmetic number, because the mean of its divisors is an integer number (3019872864976).

Almost surely, 2^{12000021121201} is an apocalyptic number.

It is an amenable number.

12000021121201 is a deficient number, since it is larger than the sum of its proper divisors (79470338703).

12000021121201 is an equidigital number, since it uses as much as digits as its factorization.

12000021121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79470338702.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12000021121201 its reverse (10212112000021), we get a palindrome (22212133121222).

The spelling of 12000021121201 in words is "twelve trillion, twenty-one million, one hundred twenty-one thousand, two hundred one".