11211220102122 has 24 divisors (see below), whose sum is σ = 24947489778276. Its totient is φ = 3636071384256.

The previous prime is 11211220102109. The next prime is 11211220102133. The reversal of 11211220102122 is 22120102211211.

11211220102122 is a `hidden beast` number, since 11 + 211 + 220 + 10 + 212 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8551290699081 + 2659929403041 = 2924259^2 + 1630929^2 .

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 = 11211220102095 and 11211220102104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8416831243 + ... + 8416832574.

Almost surely, 2^{11211220102122} is an apocalyptic number.

11211220102122 is an abundant number, since it is smaller than the sum of its proper divisors (13736269676154).

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

11211220102122 is a wasteful number, since it uses less digits than its factorization.

11211220102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16833663862 (or 16833663859 counting only the distinct ones).

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

Adding to 11211220102122 its reverse (22120102211211), we get a palindrome (33331322313333).

The spelling of 11211220102122 in words is "eleven trillion, two hundred eleven billion, two hundred twenty million, one hundred two thousand, one hundred twenty-two".