20121333100201 has 4 divisors (see below), whose sum is σ = 20121343029504. Its totient is φ = 20121323170900.

The previous prime is 20121333100177. The next prime is 20121333100217. The reversal of 20121333100201 is 10200133312102.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20121333100201 - 2⁹ = 20121333099689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121333100301) 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, 708985 + ... + 6383206.

It is an arithmetic number, because the mean of its divisors is an integer number (5030335757376).

Almost surely, 2^{20121333100201} is an apocalyptic number.

It is an amenable number.

20121333100201 is a deficient number, since it is larger than the sum of its proper divisors (9929303).

20121333100201 is an equidigital number, since it uses as much as digits as its factorization.

20121333100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9929302.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20121333100201 its reverse (10200133312102), we get a palindrome (30321466412303).

The spelling of 20121333100201 in words is "twenty trillion, one hundred twenty-one billion, three hundred thirty-three million, one hundred thousand, two hundred one".