12101033121 has 16 divisors (see below), whose sum is σ = 16456124736. Its totient is φ = 7908005376.

The previous prime is 12101033107. The next prime is 12101033137. The reversal of 12101033121 is 12133010121.

It is a happy number.

It is not a de Polignac number, because 12101033121 - 2³³ = 3511098529 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12101033121.

It is not an unprimeable number, because it can be changed into a prime (12101033521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133800 + ... + 205193.

It is an arithmetic number, because the mean of its divisors is an integer number (1028507796).

Almost surely, 2^12101033121 is an apocalyptic number.

It is an amenable number.

12101033121 is a deficient number, since it is larger than the sum of its proper divisors (4355091615).

12101033121 is a wasteful number, since it uses less digits than its factorization.

12101033121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339232.

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

Adding to 12101033121 its reverse (12133010121), we get a palindrome (24234043242).

The spelling of 12101033121 in words is "twelve billion, one hundred one million, thirty-three thousand, one hundred twenty-one".