1212122120222 has 12 divisors (see below), whose sum is σ = 1968801905880. Its totient is φ = 559440978408.

The previous prime is 1212122120207. The next prime is 1212122120327. The reversal of 1212122120222 is 2220212212121.

It is a junction number, because it is equal to n+sod(n) for n = 1212122120194 and 1212122120203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1793079722 + ... + 1793080397.

It is an arithmetic number, because the mean of its divisors is an integer number (164066825490).

Almost surely, 2^{1212122120222} is an apocalyptic number.

1212122120222 is a deficient number, since it is larger than the sum of its proper divisors (756679785658).

1212122120222 is a wasteful number, since it uses less digits than its factorization.

1212122120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586160147 (or 3586160134 counting only the distinct ones).

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

Adding to 1212122120222 its reverse (2220212212121), we get a palindrome (3432334332343).

The spelling of 1212122120222 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, one hundred twenty thousand, two hundred twenty-two".