211211322203 has 6 divisors (see below), whose sum is σ = 245694803436. Its totient is φ = 181038276132.

The previous prime is 211211322187. The next prime is 211211322209. The reversal of 211211322203 is 302223112112.

It is not a de Polignac number, because 211211322203 - 2⁴ = 211211322187 is a prime.

It is a super-2 number, since 2×211211322203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211211322209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2155217525 + ... + 2155217622.

It is an arithmetic number, because the mean of its divisors is an integer number (40949133906).

Almost surely, 2^211211322203 is an apocalyptic number.

211211322203 is a deficient number, since it is larger than the sum of its proper divisors (34483481233).

211211322203 is an equidigital number, since it uses as much as digits as its factorization.

211211322203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4310435161 (or 4310435154 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 211211322203 its reverse (302223112112), we get a palindrome (513434434315).

The spelling of 211211322203 in words is "two hundred eleven billion, two hundred eleven million, three hundred twenty-two thousand, two hundred three".