2121201112103 has 8 divisors (see below), whose sum is σ = 2206113854736. Its totient is φ = 2037905755200.

The previous prime is 2121201112081. The next prime is 2121201112111. The reversal of 2121201112103 is 3012111021212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2121201112103 - 2³⁴ = 2104021242919 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 (2121201112183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404343758 + ... + 404349003.

It is an arithmetic number, because the mean of its divisors is an integer number (275764231842).

Almost surely, 2^{2121201112103} is an apocalyptic number.

2121201112103 is a deficient number, since it is larger than the sum of its proper divisors (84912742633).

2121201112103 is an equidigital number, since it uses as much as digits as its factorization.

2121201112103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808692865.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2121201112103 its reverse (3012111021212), we get a palindrome (5133312133315).

The spelling of 2121201112103 in words is "two trillion, one hundred twenty-one billion, two hundred one million, one hundred twelve thousand, one hundred three".