11102212021122 has 48 divisors (see below), whose sum is σ = 24191058665592. Its totient is φ = 3679779041280.

The previous prime is 11102212021111. The next prime is 11102212021123. The reversal of 11102212021122 is 22112021220111.

It can be written as a sum of positive squares in 4 ways, for example, as 6053917541841 + 5048294479281 = 2460471^2 + 2246841^2 .

It is a super-2 number, since 2×11102212021122² (a number of 27 digits) contains 22 as substring.

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 = 11102212021095 and 11102212021104.

It is not an unprimeable number, because it can be changed into a prime (11102212021123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23540128 + ... + 24007124.

Almost surely, 2^{11102212021122} is an apocalyptic number.

11102212021122 is an abundant number, since it is smaller than the sum of its proper divisors (13088846644470).

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

11102212021122 is a wasteful number, since it uses less digits than its factorization.

11102212021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474483 (or 474480 counting only the distinct ones).

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

Adding to 11102212021122 its reverse (22112021220111), we get a palindrome (33214233241233).

The spelling of 11102212021122 in words is "eleven trillion, one hundred two billion, two hundred twelve million, twenty-one thousand, one hundred twenty-two".