12212323222 has 16 divisors (see below), whose sum is σ = 20471212944. Its totient is φ = 5415664000.

The previous prime is 12212323217. The next prime is 12212323259. The reversal of 12212323222 is 22232321221.

It is a super-2 number, since 2×12212323222² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12212323193 and 12212323202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6768679 + ... + 6770482.

It is an arithmetic number, because the mean of its divisors is an integer number (1279450809).

Almost surely, 2^12212323222 is an apocalyptic number.

12212323222 is a deficient number, since it is larger than the sum of its proper divisors (8258889722).

12212323222 is a wasteful number, since it uses less digits than its factorization.

12212323222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13539215.

The product of its digits is 1152, while the sum is 22.

Adding to 12212323222 its reverse (22232321221), we get a palindrome (34444644443).

The spelling of 12212323222 in words is "twelve billion, two hundred twelve million, three hundred twenty-three thousand, two hundred twenty-two".