11201022111 has 8 divisors (see below), whose sum is σ = 14955073840. Its totient is φ = 7457159232.

The previous prime is 11201022097. The next prime is 11201022121. The reversal of 11201022111 is 11122010211.

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

It is not a de Polignac number, because 11201022111 - 2⁶ = 11201022047 is a prime.

It is a super-2 number, since 2×11201022111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201022121) 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, 2544646 + ... + 2549043.

It is an arithmetic number, because the mean of its divisors is an integer number (1869384230).

Almost surely, 2^11201022111 is an apocalyptic number.

11201022111 is a deficient number, since it is larger than the sum of its proper divisors (3754051729).

11201022111 is an equidigital number, since it uses as much as digits as its factorization.

11201022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5094425.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11201022111 its reverse (11122010211), we get a palindrome (22323032322).

The spelling of 11201022111 in words is "eleven billion, two hundred one million, twenty-two thousand, one hundred eleven".