12120101001001 has 32 divisors (see below), whose sum is σ = 14762484523008. Its totient is φ = 9724779915840.

The previous prime is 12120101000981. The next prime is 12120101001013. The reversal of 12120101001001 is 10010010102121.

It is not a de Polignac number, because 12120101001001 - 2⁷ = 12120101000873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120101001031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107190586 + ... + 107303596.

It is an arithmetic number, because the mean of its divisors is an integer number (461327641344).

Almost surely, 2^{12120101001001} is an apocalyptic number.

It is an amenable number.

12120101001001 is a deficient number, since it is larger than the sum of its proper divisors (2642383522007).

12120101001001 is a wasteful number, since it uses less digits than its factorization.

12120101001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127261.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12120101001001 its reverse (10010010102121), we get a palindrome (22130111103122).

The spelling of 12120101001001 in words is "twelve trillion, one hundred twenty billion, one hundred one million, one thousand, one".