20121121002201 has 8 divisors (see below), whose sum is σ = 26978039333280. Its totient is φ = 13339141669632.

The previous prime is 20121121002197. The next prime is 20121121002211. The reversal of 20121121002201 is 10220012112102.

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

It is not a de Polignac number, because 20121121002201 - 2² = 20121121002197 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20121121002211) 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, 18734749000 + ... + 18734750073.

It is an arithmetic number, because the mean of its divisors is an integer number (3372254916660).

Almost surely, 2^{20121121002201} is an apocalyptic number.

It is an amenable number.

20121121002201 is a deficient number, since it is larger than the sum of its proper divisors (6856918331079).

20121121002201 is a wasteful number, since it uses less digits than its factorization.

20121121002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37469499255.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20121121002201 its reverse (10220012112102), we get a palindrome (30341133114303).

The spelling of 20121121002201 in words is "twenty trillion, one hundred twenty-one billion, one hundred twenty-one million, two thousand, two hundred one".