12121301001211 has 8 divisors (see below), whose sum is σ = 12143665952064. Its totient is φ = 12098938213440.

The previous prime is 12121301001203. The next prime is 12121301001259. The reversal of 12121301001211 is 11210010312121.

It is a happy number.

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 12121301001211 - 2³ = 12121301001203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121301001011) 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, 10899966 + ... + 11960428.

It is an arithmetic number, because the mean of its divisors is an integer number (1517958244008).

Almost surely, 2^{12121301001211} is an apocalyptic number.

12121301001211 is a deficient number, since it is larger than the sum of its proper divisors (22364950853).

12121301001211 is a wasteful number, since it uses less digits than its factorization.

12121301001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081541.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12121301001211 its reverse (11210010312121), we get a palindrome (23331311313332).

The spelling of 12121301001211 in words is "twelve trillion, one hundred twenty-one billion, three hundred one million, one thousand, two hundred eleven".