12212102222222 has 32 divisors (see below), whose sum is σ = 21638458490880. Its totient is φ = 5058340669440.

The previous prime is 12212102222197. The next prime is 12212102222239. The reversal of 12212102222222 is 22222220121221.

12212102222222 is a modest number, since divided by 2222222 gives 1221210 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17961758 + ... + 18629249.

It is an arithmetic number, because the mean of its divisors is an integer number (676201827840).

Almost surely, 2^{12212102222222} is an apocalyptic number.

12212102222222 is a deficient number, since it is larger than the sum of its proper divisors (9426356268658).

12212102222222 is a wasteful number, since it uses less digits than its factorization.

12212102222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36591816.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 12212102222222 its reverse (22222220121221), we get a palindrome (34434322343443).

The spelling of 12212102222222 in words is "twelve trillion, two hundred twelve billion, one hundred two million, two hundred twenty-two thousand, two hundred twenty-two".