1122220222012 has 24 divisors (see below), whose sum is σ = 2081368049040. Its totient is φ = 527605858560.

The previous prime is 1122220221989. The next prime is 1122220222037. The reversal of 1122220222012 is 2102220222211.

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 7 ways as a sum of consecutive naturals, for example, 7705062 + ... + 7849357.

It is an arithmetic number, because the mean of its divisors is an integer number (86723668710).

Almost surely, 2^{1122220222012} is an apocalyptic number.

It is an amenable number.

1122220222012 is a deficient number, since it is larger than the sum of its proper divisors (959147827028).

1122220222012 is a wasteful number, since it uses less digits than its factorization.

1122220222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15555501 (or 15555499 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1122220222012 its reverse (2102220222211), we get a palindrome (3224440444223).

The spelling of 1122220222012 in words is "one trillion, one hundred twenty-two billion, two hundred twenty million, two hundred twenty-two thousand, twelve".