12235521121101 has 6 divisors (see below), whose sum is σ = 17673530508270. Its totient is φ = 8157014080728.

The previous prime is 12235521121079. The next prime is 12235521121123. The reversal of 12235521121101 is 10112112553221.

12235521121101 is a `hidden beast` number, since 1 + 2 + 2 + 3 + 5 + 521 + 121 + 10 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (12235521121079) and next prime (12235521121123).

It can be written as a sum of positive squares in only one way, i.e., 12235122519876 + 398601225 = 3497874^2 + 19965^2 .

It is not a de Polignac number, because 12235521121101 - 2¹⁰ = 12235521120077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12235521121001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 679751173386 + ... + 679751173403.

It is an arithmetic number, because the mean of its divisors is an integer number (2945588418045).

Almost surely, 2^{12235521121101} is an apocalyptic number.

It is an amenable number.

12235521121101 is a deficient number, since it is larger than the sum of its proper divisors (5438009387169).

12235521121101 is a wasteful number, since it uses less digits than its factorization.

12235521121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359502346795 (or 1359502346792 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

Adding to 12235521121101 its reverse (10112112553221), we get a palindrome (22347633674322).

The spelling of 12235521121101 in words is "twelve trillion, two hundred thirty-five billion, five hundred twenty-one million, one hundred twenty-one thousand, one hundred one".