1111222220012 has 12 divisors (see below), whose sum is σ = 1944658328256. Its totient is φ = 555605554800.

The previous prime is 1111222220011. The next prime is 1111222220027. The reversal of 1111222220012 is 2100222221111.

It is not an unprimeable number, because it can be changed into a prime (1111222220011) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 921239 + ... + 1752462.

It is an arithmetic number, because the mean of its divisors is an integer number (162054860688).

Almost surely, 2^{1111222220012} is an apocalyptic number.

It is an amenable number.

1111222220012 is a deficient number, since it is larger than the sum of its proper divisors (833436108244).

1111222220012 is a wasteful number, since it uses less digits than its factorization.

1111222220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777608 (or 2777606 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1111222220012 its reverse (2100222221111), we get a palindrome (3211444441123).

The spelling of 1111222220012 in words is "one trillion, one hundred eleven billion, two hundred twenty-two million, two hundred twenty thousand, twelve".