1111221102 has 32 divisors (see below), whose sum is σ = 2298737664. Its totient is φ = 357739200.

The previous prime is 1111221091. The next prime is 1111221107. The reversal of 1111221102 is 2011221111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111221107) 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 15 ways as a sum of consecutive naturals, for example, 91173 + ... + 102639.

It is an arithmetic number, because the mean of its divisors is an integer number (71835552).

Almost surely, 2^1111221102 is an apocalyptic number.

1111221102 is an abundant number, since it is smaller than the sum of its proper divisors (1187516562).

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

1111221102 is a wasteful number, since it uses less digits than its factorization.

1111221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12024.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1111221102 is about 33334.9831558380. The cubic root of 1111221102 is about 1035.7783442501.

Adding to 1111221102 its reverse (2011221111), we get a palindrome (3122442213).

Subtracting 1111221102 from its reverse (2011221111), we obtain a palindrome (900000009).

The spelling of 1111221102 in words is "one billion, one hundred eleven million, two hundred twenty-one thousand, one hundred two".