12210212222 has 8 divisors (see below), whose sum is σ = 19724189016. Its totient is φ = 5635482552.

The previous prime is 12210212197. The next prime is 12210212227. The reversal of 12210212222 is 22221201221.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12210212222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210212227) 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, 234811748 + ... + 234811799.

It is an arithmetic number, because the mean of its divisors is an integer number (2465523627).

Almost surely, 2^12210212222 is an apocalyptic number.

12210212222 is a deficient number, since it is larger than the sum of its proper divisors (7513976794).

12210212222 is a wasteful number, since it uses less digits than its factorization.

12210212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469623562.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12210212222 its reverse (22221201221), we get a palindrome (34431413443).

The spelling of 12210212222 in words is "twelve billion, two hundred ten million, two hundred twelve thousand, two hundred twenty-two".