11201012011021 has 4 divisors (see below), whose sum is σ = 12801156584032. Its totient is φ = 9600867438012.

The previous prime is 11201012010893. The next prime is 11201012011039. The reversal of 11201012011021 is 12011021010211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11201012011021 - 2⁷ = 11201012010893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201012010992 and 11201012011010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201012411021) 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, 800072286495 + ... + 800072286508.

It is an arithmetic number, because the mean of its divisors is an integer number (3200289146008).

Almost surely, 2^{11201012011021} is an apocalyptic number.

It is an amenable number.

11201012011021 is a deficient number, since it is larger than the sum of its proper divisors (1600144573011).

11201012011021 is an equidigital number, since it uses as much as digits as its factorization.

11201012011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600144573010.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11201012011021 its reverse (12011021010211), we get a palindrome (23212033021232).

The spelling of 11201012011021 in words is "eleven trillion, two hundred one billion, twelve million, eleven thousand, twenty-one".