111220102 has 24 divisors (see below), whose sum is σ = 198588456. Its totient is φ = 46555488.

The previous prime is 111220097. The next prime is 111220117. The reversal of 111220102 is 201022111.

It is a super-2 number, since 2×111220102² = 24739822177780808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8983 + ... + 17410.

It is an arithmetic number, because the mean of its divisors is an integer number (8274519).

Almost surely, 2^111220102 is an apocalyptic number.

111220102 is a deficient number, since it is larger than the sum of its proper divisors (87368354).

111220102 is a wasteful number, since it uses less digits than its factorization.

111220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26452 (or 26445 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 111220102 is about 10546.0941585025. The cubic root of 111220102 is about 480.9069974623.

Adding to 111220102 its reverse (201022111), we get a palindrome (312242213).

The spelling of 111220102 in words is "one hundred eleven million, two hundred twenty thousand, one hundred two".