11201212021111 has 8 divisors (see below), whose sum is σ = 12802196174720. Its totient is φ = 9600430619448.

The previous prime is 11201212021079. The next prime is 11201212021121. The reversal of 11201212021111 is 11112021210211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11201212021111 - 2⁵ = 11201212021079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201212021121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50569581 + ... + 50790598.

It is an arithmetic number, because the mean of its divisors is an integer number (1600274521840).

Almost surely, 2^{11201212021111} is an apocalyptic number.

11201212021111 is a deficient number, since it is larger than the sum of its proper divisors (1600984153609).

11201212021111 is a wasteful number, since it uses less digits than its factorization.

11201212021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101375973.

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

Adding to 11201212021111 its reverse (11112021210211), we get a palindrome (22313233231322).

The spelling of 11201212021111 in words is "eleven trillion, two hundred one billion, two hundred twelve million, twenty-one thousand, one hundred eleven".