12210012122222 has 4 divisors (see below), whose sum is σ = 18315018183336. Its totient is φ = 6105006061110.

The previous prime is 12210012122171. The next prime is 12210012122251. The reversal of 12210012122222 is 22222121001221.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 12210012122194 and 12210012122203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3052503030554 + ... + 3052503030557.

It is an arithmetic number, because the mean of its divisors is an integer number (4578754545834).

Almost surely, 2^{12210012122222} is an apocalyptic number.

12210012122222 is a deficient number, since it is larger than the sum of its proper divisors (6105006061114).

12210012122222 is an equidigital number, since it uses as much as digits as its factorization.

12210012122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105006061113.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12210012122222 its reverse (22222121001221), we get a palindrome (34432133123443).

The spelling of 12210012122222 in words is "twelve trillion, two hundred ten billion, twelve million, one hundred twenty-two thousand, two hundred twenty-two".