212213011223 has 16 divisors (see below), whose sum is σ = 222549036192. Its totient is φ = 202178880000.

The previous prime is 212213011181. The next prime is 212213011289. The reversal of 212213011223 is 322110312212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212213011223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212213011195 and 212213011204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212213017223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48713 + ... + 653298.

It is an arithmetic number, because the mean of its divisors is an integer number (13909314762).

Almost surely, 2^212213011223 is an apocalyptic number.

212213011223 is a deficient number, since it is larger than the sum of its proper divisors (10336024969).

212213011223 is a wasteful number, since it uses less digits than its factorization.

212213011223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702226.

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

Adding to 212213011223 its reverse (322110312212), we get a palindrome (534323323435).

The spelling of 212213011223 in words is "two hundred twelve billion, two hundred thirteen million, eleven thousand, two hundred twenty-three".