2121022211103 has 16 divisors (see below), whose sum is σ = 3147431848960. Its totient is φ = 1411685282808.

The previous prime is 2121022211041. The next prime is 2121022211167. The reversal of 2121022211103 is 3011122201212.

It is not a de Polignac number, because 2121022211103 - 2⁶ = 2121022211039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121022231103) 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 15 ways as a sum of consecutive naturals, for example, 64692325 + ... + 64725102.

It is an arithmetic number, because the mean of its divisors is an integer number (196714490560).

Almost surely, 2^{2121022211103} is an apocalyptic number.

2121022211103 is a deficient number, since it is larger than the sum of its proper divisors (1026409637857).

2121022211103 is a wasteful number, since it uses less digits than its factorization.

2121022211103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129418043 (or 129418037 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2121022211103 its reverse (3011122201212), we get a palindrome (5132144412315).

The spelling of 2121022211103 in words is "two trillion, one hundred twenty-one billion, twenty-two million, two hundred eleven thousand, one hundred three".