1111221122012 has 12 divisors (see below), whose sum is σ = 1986012218400. Its totient is φ = 543789059616.

The previous prime is 1111221122003. The next prime is 1111221122029. The reversal of 1111221122012 is 2102211221111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2955375137 + ... + 2955375512.

It is an arithmetic number, because the mean of its divisors is an integer number (165501018200).

Almost surely, 2^{1111221122012} is an apocalyptic number.

It is an amenable number.

1111221122012 is a deficient number, since it is larger than the sum of its proper divisors (874791096388).

1111221122012 is a wasteful number, since it uses less digits than its factorization.

1111221122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5910750700 (or 5910750698 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1111221122012 its reverse (2102211221111), we get a palindrome (3213432343123).

Subtracting 1111221122012 from its reverse (2102211221111), we obtain a palindrome (990990099099).

The spelling of 1111221122012 in words is "one trillion, one hundred eleven billion, two hundred twenty-one million, one hundred twenty-two thousand, twelve".