11201112210021 has 16 divisors (see below), whose sum is σ = 15712568749248. Its totient is φ = 7088376873600.

The previous prime is 11201112210017. The next prime is 11201112210049. The reversal of 11201112210021 is 12001221110211.

It is a happy number.

It is not a de Polignac number, because 11201112210021 - 2² = 11201112210017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201112210011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1230616435 + ... + 1230625536.

It is an arithmetic number, because the mean of its divisors is an integer number (982035546828).

Almost surely, 2^{11201112210021} is an apocalyptic number.

It is an amenable number.

11201112210021 is a deficient number, since it is larger than the sum of its proper divisors (4511456539227).

11201112210021 is a wasteful number, since it uses less digits than its factorization.

11201112210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461242052.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11201112210021 its reverse (12001221110211), we get a palindrome (23202333320232).

The spelling of 11201112210021 in words is "eleven trillion, two hundred one billion, one hundred twelve million, two hundred ten thousand, twenty-one".