2115121022203 has 12 divisors (see below), whose sum is σ = 2605179075192. Its totient is φ = 1706316118080.

The previous prime is 2115121022177. The next prime is 2115121022219. The reversal of 2115121022203 is 3022201215112.

It is not a de Polignac number, because 2115121022203 - 2¹³ = 2115121014011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115121082203) 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 11 ways as a sum of consecutive naturals, for example, 1269579613 + ... + 1269581278.

It is an arithmetic number, because the mean of its divisors is an integer number (217098256266).

Almost surely, 2^{2115121022203} is an apocalyptic number.

2115121022203 is a deficient number, since it is larger than the sum of its proper divisors (490058052989).

2115121022203 is a wasteful number, since it uses less digits than its factorization.

2115121022203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539160922 (or 2539160915 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 2115121022203 its reverse (3022201215112), we get a palindrome (5137322237315).

The spelling of 2115121022203 in words is "two trillion, one hundred fifteen billion, one hundred twenty-one million, twenty-two thousand, two hundred three".