1111201221102 has 64 divisors (see below), whose sum is σ = 2549928314880. Its totient is φ = 316231646976.

The previous prime is 1111201221061. The next prime is 1111201221139. The reversal of 1111201221102 is 2011221021111.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 63791098 + ... + 63808514.

It is an arithmetic number, because the mean of its divisors is an integer number (39842629920).

Almost surely, 2^{1111201221102} is an apocalyptic number.

1111201221102 is an abundant number, since it is smaller than the sum of its proper divisors (1438727093778).

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

1111201221102 is a wasteful number, since it uses less digits than its factorization.

1111201221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23345.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1111201221102 its reverse (2011221021111), we get a palindrome (3122422242213).

The spelling of 1111201221102 in words is "one trillion, one hundred eleven billion, two hundred one million, two hundred twenty-one thousand, one hundred two".