12121333201 has 4 divisors (see below), whose sum is σ = 12648347712. Its totient is φ = 11594318692.

The previous prime is 12121333187. The next prime is 12121333243. The reversal of 12121333201 is 10233312121.

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 12121333201 - 2¹⁹ = 12120808913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121333291) 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, 263507221 + ... + 263507266.

It is an arithmetic number, because the mean of its divisors is an integer number (3162086928).

Almost surely, 2^12121333201 is an apocalyptic number.

It is an amenable number.

12121333201 is a deficient number, since it is larger than the sum of its proper divisors (527014511).

12121333201 is an equidigital number, since it uses as much as digits as its factorization.

12121333201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527014510.

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

Adding to 12121333201 its reverse (10233312121), we get a palindrome (22354645322).

The spelling of 12121333201 in words is "twelve billion, one hundred twenty-one million, three hundred thirty-three thousand, two hundred one".