212223211222 has 8 divisors (see below), whose sum is σ = 347274345672. Its totient is φ = 96465096000.

The previous prime is 212223211201. The next prime is 212223211237. The reversal of 212223211222 is 222112322212.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 9646509601 = 212223211222 / (2 + 1 + 2 + 2 + 2 + 3 + 2 + 1 + 1 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 212223211193 and 212223211202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4823254779 + ... + 4823254822.

It is an arithmetic number, because the mean of its divisors is an integer number (43409293209).

Almost surely, 2^212223211222 is an apocalyptic number.

212223211222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212223211222 is a deficient number, since it is larger than the sum of its proper divisors (135051134450).

212223211222 is a wasteful number, since it uses less digits than its factorization.

212223211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9646509614.

The product of its digits is 768, while the sum is 22.

Adding to 212223211222 its reverse (222112322212), we get a palindrome (434335533434).

The spelling of 212223211222 in words is "two hundred twelve billion, two hundred twenty-three million, two hundred eleven thousand, two hundred twenty-two".