210021212102203 has 2 divisors, whose sum is σ = 210021212102204. Its totient is φ = 210021212102202.

The previous prime is 210021212102197. The next prime is 210021212102297. The reversal of 210021212102203 is 302201212120012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210021212102203 - 2²¹ = 210021210005051 is a prime.

It is not a weakly prime, because it can be changed into another prime (210021212102503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105010606051101 + 105010606051102.

It is an arithmetic number, because the mean of its divisors is an integer number (105010606051102).

Almost surely, 2^{210021212102203} is an apocalyptic number.

210021212102203 is a deficient number, since it is larger than the sum of its proper divisors (1).

210021212102203 is an equidigital number, since it uses as much as digits as its factorization.

210021212102203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 210021212102203 its reverse (302201212120012), we get a palindrome (512222424222215).

The spelling of 210021212102203 in words is "two hundred ten trillion, twenty-one billion, two hundred twelve million, one hundred two thousand, two hundred three".