11201212120111 has 8 divisors (see below), whose sum is σ = 12082982133600. Its totient is φ = 10322319008352.

The previous prime is 11201212120069. The next prime is 11201212120121. The reversal of 11201212120111 is 11102121210211.

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

It is not a de Polignac number, because 11201212120111 - 2¹⁷ = 11201211989039 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 (11201212120121) 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, 719217340 + ... + 719232913.

It is an arithmetic number, because the mean of its divisors is an integer number (1510372766700).

Almost surely, 2^{11201212120111} is an apocalyptic number.

11201212120111 is a deficient number, since it is larger than the sum of its proper divisors (881770013489).

11201212120111 is a wasteful number, since it uses less digits than its factorization.

11201212120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438450865.

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

Adding to 11201212120111 its reverse (11102121210211), we get a palindrome (22303333330322).

The spelling of 11201212120111 in words is "eleven trillion, two hundred one billion, two hundred twelve million, one hundred twenty thousand, one hundred eleven".