11201211120 has 80 divisors (see below), whose sum is σ = 37880468352. Its totient is φ = 2715444480.

The previous prime is 11201211017. The next prime is 11201211211. The reversal of 11201211120 is 2111210211.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11201211096 and 11201211105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2118802 + ... + 2124081.

Almost surely, 2^11201211120 is an apocalyptic number.

11201211120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11201211120 is an abundant number, since it is smaller than the sum of its proper divisors (26679257232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11201211120 is a wasteful number, since it uses less digits than its factorization.

11201211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242910 (or 4242904 counting only the distinct ones).

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

Adding to 11201211120 its reverse (2111210211), we get a palindrome (13312421331).

Subtracting from 11201211120 its reverse (2111210211), we obtain a palindrome (9090000909).

The spelling of 11201211120 in words is "eleven billion, two hundred one million, two hundred eleven thousand, one hundred twenty".