2120211220103 has 4 divisors (see below), whose sum is σ = 2171923688928. Its totient is φ = 2068498751280.

The previous prime is 2120211220097. The next prime is 2120211220109. The reversal of 2120211220103 is 3010221120212.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2120211220097) and next prime (2120211220109).

It is a cyclic number.

It is not a de Polignac number, because 2120211220103 - 2¹⁸ = 2120210957959 is a prime.

It is a super-2 number, since 2×2120211220103² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120211220109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25856234351 + ... + 25856234432.

It is an arithmetic number, because the mean of its divisors is an integer number (542980922232).

Almost surely, 2^{2120211220103} is an apocalyptic number.

2120211220103 is a deficient number, since it is larger than the sum of its proper divisors (51712468825).

2120211220103 is an equidigital number, since it uses as much as digits as its factorization.

2120211220103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51712468824.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2120211220103 its reverse (3010221120212), we get a palindrome (5130432340315).

The spelling of 2120211220103 in words is "two trillion, one hundred twenty billion, two hundred eleven million, two hundred twenty thousand, one hundred three".