12210212220222 has 16 divisors (see below), whose sum is σ = 24421983345792. Its totient is φ = 4069810922520.

The previous prime is 12210212220179. The next prime is 12210212220229. The reversal of 12210212220222 is 22202221201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210212220229) 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, 64852554 + ... + 65040557.

It is an arithmetic number, because the mean of its divisors is an integer number (1526373959112).

Almost surely, 2^{12210212220222} is an apocalyptic number.

12210212220222 is an abundant number, since it is smaller than the sum of its proper divisors (12211771125570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12210212220222 is a wasteful number, since it uses less digits than its factorization.

12210212220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129908783.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12210212220222 its reverse (22202221201221), we get a palindrome (34412433421443).

The spelling of 12210212220222 in words is "twelve trillion, two hundred ten billion, two hundred twelve million, two hundred twenty thousand, two hundred twenty-two".