11201122021122 has 48 divisors (see below), whose sum is σ = 26653066502400. Its totient is φ = 3371498992800.

The previous prime is 11201122021109. The next prime is 11201122021127. The reversal of 11201122021122 is 22112022110211.

11201122021122 is a `hidden beast` number, since 11 + 201 + 1 + 220 + 211 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11201122021095 and 11201122021104.

It is not an unprimeable number, because it can be changed into a prime (11201122021127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189807154 + ... + 189866157.

It is an arithmetic number, because the mean of its divisors is an integer number (555272218800).

Almost surely, 2^{11201122021122} is an apocalyptic number.

11201122021122 is an abundant number, since it is smaller than the sum of its proper divisors (15451944481278).

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

11201122021122 is a wasteful number, since it uses less digits than its factorization.

11201122021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379673479 (or 379673476 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11201122021122 its reverse (22112022110211), we get a palindrome (33313144131333).

The spelling of 11201122021122 in words is "eleven trillion, two hundred one billion, one hundred twenty-two million, twenty-one thousand, one hundred twenty-two".