12011203221101 has 6 divisors (see below), whose sum is σ = 13972215991950. Its totient is φ = 10295317046616.

The previous prime is 12011203221091. The next prime is 12011203221119. The reversal of 12011203221101 is 10112230211021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12007922910025 + 3280311076 = 3465245^2 + 57274^2 .

It is not a de Polignac number, because 12011203221101 - 2²² = 12011199026797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12011203221101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011203221601) 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, 122563298126 + ... + 122563298223.

It is an arithmetic number, because the mean of its divisors is an integer number (2328702665325).

Almost surely, 2^{12011203221101} is an apocalyptic number.

It is an amenable number.

12011203221101 is a deficient number, since it is larger than the sum of its proper divisors (1961012770849).

12011203221101 is an equidigital number, since it uses as much as digits as its factorization.

12011203221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245126596363 (or 245126596356 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12011203221101 its reverse (10112230211021), we get a palindrome (22123433432122).

The spelling of 12011203221101 in words is "twelve trillion, eleven billion, two hundred three million, two hundred twenty-one thousand, one hundred one".