12011001100121 has 16 divisors (see below), whose sum is σ = 12421955747328. Its totient is φ = 11601533059200.

The previous prime is 12011001100099. The next prime is 12011001100129. The reversal of 12011001100121 is 12100110011021.

It is a cyclic number.

It is not a de Polignac number, because 12011001100121 - 2⁶ = 12011001100057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011001100129) 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, 40991666 + ... + 41283636.

It is an arithmetic number, because the mean of its divisors is an integer number (776372234208).

Almost surely, 2^{12011001100121} is an apocalyptic number.

It is an amenable number.

12011001100121 is a deficient number, since it is larger than the sum of its proper divisors (410954647207).

12011001100121 is a wasteful number, since it uses less digits than its factorization.

12011001100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294512.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12011001100121 its reverse (12100110011021), we get a palindrome (24111111111142).

The spelling of 12011001100121 in words is "twelve trillion, eleven billion, one million, one hundred thousand, one hundred twenty-one".