1222002220012 has 48 divisors (see below), whose sum is σ = 2523496019968. Its totient is φ = 506690069760.

The previous prime is 1222002219967. The next prime is 1222002220037. The reversal of 1222002220012 is 2100222002221.

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 15 ways as a sum of consecutive naturals, for example, 3211108 + ... + 3571444.

Almost surely, 2^{1222002220012} is an apocalyptic number.

It is an amenable number.

1222002220012 is an abundant number, since it is smaller than the sum of its proper divisors (1301493799956).

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

1222002220012 is a wasteful number, since it uses less digits than its factorization.

1222002220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364286 (or 364284 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1222002220012 its reverse (2100222002221), we get a palindrome (3322224222233).

The spelling of 1222002220012 in words is "one trillion, two hundred twenty-two billion, two million, two hundred twenty thousand, twelve".