12210001022222 has 16 divisors (see below), whose sum is σ = 18443828293632. Its totient is φ = 6062091307800.

The previous prime is 12210001022207. The next prime is 12210001022333. The reversal of 12210001022222 is 22222010001221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12210001022222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7522238 + ... + 9000225.

It is an arithmetic number, because the mean of its divisors is an integer number (1152739268352).

Almost surely, 2^{12210001022222} is an apocalyptic number.

12210001022222 is a deficient number, since it is larger than the sum of its proper divisors (6233827271410).

12210001022222 is a wasteful number, since it uses less digits than its factorization.

12210001022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16525063.

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

Adding to 12210001022222 its reverse (22222010001221), we get a palindrome (34432011023443).

The spelling of 12210001022222 in words is "twelve trillion, two hundred ten billion, one million, twenty-two thousand, two hundred twenty-two".