11212011212201 has 4 divisors (see below), whose sum is σ = 11214304530900. Its totient is φ = 11209717893504.

The previous prime is 11212011212177. The next prime is 11212011212291. The reversal of 11212011212201 is 10221211021211.

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 6010715208976 + 5201296003225 = 2451676^2 + 2280635^2 .

It is a cyclic number.

It is not a de Polignac number, because 11212011212201 - 2¹⁴ = 11212011195817 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 11212011212201.

It is not an unprimeable number, because it can be changed into a prime (11212011212291) 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, 1146652016 + ... + 1146661793.

It is an arithmetic number, because the mean of its divisors is an integer number (2803576132725).

Almost surely, 2^{11212011212201} is an apocalyptic number.

It is an amenable number.

11212011212201 is a deficient number, since it is larger than the sum of its proper divisors (2293318699).

11212011212201 is an equidigital number, since it uses as much as digits as its factorization.

11212011212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293318698.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11212011212201 its reverse (10221211021211), we get a palindrome (21433222233412).

The spelling of 11212011212201 in words is "eleven trillion, two hundred twelve billion, eleven million, two hundred twelve thousand, two hundred one".