11201212111122 has 96 divisors (see below), whose sum is σ = 28034125479360. Its totient is φ = 3194511068160.

The previous prime is 11201212111121. The next prime is 11201212111151. The reversal of 11201212111122 is 22111121210211.

It is a happy number.

11201212111122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 11201212111095 and 11201212111104.

It is not an unprimeable number, because it can be changed into a prime (11201212111121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 107690313 + ... + 107794275.

It is an arithmetic number, because the mean of its divisors is an integer number (292022140410).

Almost surely, 2^{11201212111122} is an apocalyptic number.

11201212111122 is an abundant number, since it is smaller than the sum of its proper divisors (16832913368238).

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

11201212111122 is a wasteful number, since it uses less digits than its factorization.

11201212111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136008 (or 136005 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11201212111122 its reverse (22111121210211), we get a palindrome (33312333321333).

The spelling of 11201212111122 in words is "eleven trillion, two hundred one billion, two hundred twelve million, one hundred eleven thousand, one hundred twenty-two".