212111132203 has 4 divisors (see below), whose sum is σ = 212998626720. Its totient is φ = 211223637688.

The previous prime is 212111132173. The next prime is 212111132213. The reversal of 212111132203 is 302231111212.

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 212111132203 - 2⁵ = 212111132171 is a prime.

It is a super-2 number, since 2×212111132203² (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 (212111132213) 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, 443746900 + ... + 443747377.

It is an arithmetic number, because the mean of its divisors is an integer number (53249656680).

Almost surely, 2^212111132203 is an apocalyptic number.

212111132203 is a deficient number, since it is larger than the sum of its proper divisors (887494517).

212111132203 is an equidigital number, since it uses as much as digits as its factorization.

212111132203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887494516.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 212111132203 its reverse (302231111212), we get a palindrome (514342243415).

The spelling of 212111132203 in words is "two hundred twelve billion, one hundred eleven million, one hundred thirty-two thousand, two hundred three".