11201102021211 has 4 divisors (see below), whose sum is σ = 14934802694952. Its totient is φ = 7467401347472.

The previous prime is 11201102021191. The next prime is 11201102021269. The reversal of 11201102021211 is 11212020110211.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11201102021211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11201102023211) 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, 1866850336866 + ... + 1866850336871.

It is an arithmetic number, because the mean of its divisors is an integer number (3733700673738).

Almost surely, 2^{11201102021211} is an apocalyptic number.

11201102021211 is a deficient number, since it is larger than the sum of its proper divisors (3733700673741).

11201102021211 is an equidigital number, since it uses as much as digits as its factorization.

11201102021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3733700673740.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11201102021211 its reverse (11212020110211), we get a palindrome (22413122131422).

The spelling of 11201102021211 in words is "eleven trillion, two hundred one billion, one hundred two million, twenty-one thousand, two hundred eleven".