12121010133 has 32 divisors (see below), whose sum is σ = 16575584256. Its totient is φ = 7876575168.

The previous prime is 12121010131. The next prime is 12121010141. The reversal of 12121010133 is 33101012121.

It is a happy number.

It is not a de Polignac number, because 12121010133 - 2¹ = 12121010131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121010131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8827435 + ... + 8828807.

It is an arithmetic number, because the mean of its divisors is an integer number (517987008).

Almost surely, 2^12121010133 is an apocalyptic number.

It is an amenable number.

12121010133 is a deficient number, since it is larger than the sum of its proper divisors (4454574123).

12121010133 is a wasteful number, since it uses less digits than its factorization.

12121010133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12121010133 its reverse (33101012121), we get a palindrome (45222022254).

The spelling of 12121010133 in words is "twelve billion, one hundred twenty-one million, ten thousand, one hundred thirty-three".