2021212300103 has 4 divisors (see below), whose sum is σ = 2021217222648. Its totient is φ = 2021207377560.

The previous prime is 2021212300021. The next prime is 2021212300127. The reversal of 2021212300103 is 3010032121202.

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

It is a cyclic number.

It is not a de Polignac number, because 2021212300103 - 2¹⁰ = 2021212299079 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 (2021212300153) 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, 1783076 + ... + 2687337.

It is an arithmetic number, because the mean of its divisors is an integer number (505304305662).

Almost surely, 2^{2021212300103} is an apocalyptic number.

2021212300103 is a deficient number, since it is larger than the sum of its proper divisors (4922545).

2021212300103 is an equidigital number, since it uses as much as digits as its factorization.

2021212300103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4922544.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2021212300103 its reverse (3010032121202), we get a palindrome (5031244421305).

The spelling of 2021212300103 in words is "two trillion, twenty-one billion, two hundred twelve million, three hundred thousand, one hundred three".