11211021211122 has 24 divisors (see below), whose sum is σ = 24291216295164. Its totient is φ = 3736903941504.

The previous prime is 11211021211121. The next prime is 11211021211211. The reversal of 11211021211122 is 22111212011211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11119950646281 + 91070564841 = 3334659^2 + 301779^2 .

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 = 11211021211095 and 11211021211104.

It is not an unprimeable number, because it can be changed into a prime (11211021211121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7922283 + ... + 9229550.

Almost surely, 2^{11211021211122} is an apocalyptic number.

11211021211122 is an abundant number, since it is smaller than the sum of its proper divisors (13080195084042).

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

11211021211122 is a wasteful number, since it uses less digits than its factorization.

11211021211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17188154 (or 17188151 counting only the distinct ones).

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

Adding to 11211021211122 its reverse (22111212011211), we get a palindrome (33322233222333).

The spelling of 11211021211122 in words is "eleven trillion, two hundred eleven billion, twenty-one million, two hundred eleven thousand, one hundred twenty-two".