212101330223 has 4 divisors (see below), whose sum is σ = 216103242168. Its totient is φ = 208099418280.

The previous prime is 212101330219. The next prime is 212101330237. The reversal of 212101330223 is 322033101212.

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 212101330223 - 2² = 212101330219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212101330195 and 212101330204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212101330123) 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, 2000955893 + ... + 2000955998.

It is an arithmetic number, because the mean of its divisors is an integer number (54025810542).

Almost surely, 2^212101330223 is an apocalyptic number.

212101330223 is a deficient number, since it is larger than the sum of its proper divisors (4001911945).

212101330223 is an equidigital number, since it uses as much as digits as its factorization.

212101330223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001911944.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212101330223 its reverse (322033101212), we get a palindrome (534134431435).

The spelling of 212101330223 in words is "two hundred twelve billion, one hundred one million, three hundred thirty thousand, two hundred twenty-three".