12201110101001 has 4 divisors (see below), whose sum is σ = 12201136190100. Its totient is φ = 12201084011904.

The previous prime is 12201110100979. The next prime is 12201110101039. The reversal of 12201110101001 is 10010101110221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5220676614400 + 6980433486601 = 2284880^2 + 2642051^2 .

It is a cyclic number.

It is not a de Polignac number, because 12201110101001 - 2³⁰ = 12200036359177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12201110151001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12329996 + ... + 13282733.

It is an arithmetic number, because the mean of its divisors is an integer number (3050284047525).

Almost surely, 2^{12201110101001} is an apocalyptic number.

It is an amenable number.

12201110101001 is a deficient number, since it is larger than the sum of its proper divisors (26089099).

12201110101001 is an equidigital number, since it uses as much as digits as its factorization.

12201110101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26089098.

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

Adding to 12201110101001 its reverse (10010101110221), we get a palindrome (22211211211222).

The spelling of 12201110101001 in words is "twelve trillion, two hundred one billion, one hundred ten million, one hundred one thousand, one".