212011212223 has 8 divisors (see below), whose sum is σ = 215495934560. Its totient is φ = 208526784480.

The previous prime is 212011212211. The next prime is 212011212227. The reversal of 212011212223 is 322212110212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212011212223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212011212223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011212227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1742293 + ... + 1860001.

It is an arithmetic number, because the mean of its divisors is an integer number (26936991820).

Almost surely, 2^212011212223 is an apocalyptic number.

212011212223 is a deficient number, since it is larger than the sum of its proper divisors (3484722337).

212011212223 is a wasteful number, since it uses less digits than its factorization.

212011212223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147297.

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

Adding to 212011212223 its reverse (322212110212), we get a palindrome (534223322435).

The spelling of 212011212223 in words is "two hundred twelve billion, eleven million, two hundred twelve thousand, two hundred twenty-three".