1111220120012 has 6 divisors (see below), whose sum is σ = 1944635210028. Its totient is φ = 555610060004.

The previous prime is 1111220119981. The next prime is 1111220120033. The reversal of 1111220120012 is 2100210221111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138902514998 + ... + 138902515005.

It is an arithmetic number, because the mean of its divisors is an integer number (324105868338).

Almost surely, 2^{1111220120012} is an apocalyptic number.

It is an amenable number.

1111220120012 is a deficient number, since it is larger than the sum of its proper divisors (833415090016).

1111220120012 is a wasteful number, since it uses less digits than its factorization.

1111220120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277805030007 (or 277805030005 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1111220120012 its reverse (2100210221111), we get a palindrome (3211430341123).

The spelling of 1111220120012 in words is "one trillion, one hundred eleven billion, two hundred twenty million, one hundred twenty thousand, twelve".