11121221022102 has 48 divisors (see below), whose sum is σ = 24686530989120. Its totient is φ = 3616240348800.

The previous prime is 11121221022097. The next prime is 11121221022203. The reversal of 11121221022102 is 20122012212111.

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

It is a congruent number.

It is an unprimeable number.

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, 5570452 + ... + 7298792.

It is an arithmetic number, because the mean of its divisors is an integer number (514302728940).

Almost surely, 2^{11121221022102} is an apocalyptic number.

11121221022102 is an abundant number, since it is smaller than the sum of its proper divisors (13565309967018).

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

11121221022102 is a wasteful number, since it uses less digits than its factorization.

11121221022102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737109 (or 1737106 counting only the distinct ones).

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

Adding to 11121221022102 its reverse (20122012212111), we get a palindrome (31243233234213).

The spelling of 11121221022102 in words is "eleven trillion, one hundred twenty-one billion, two hundred twenty-one million, twenty-two thousand, one hundred two".