111220112221102 has 16 divisors (see below), whose sum is σ = 166843333008432. Its totient is φ = 55605668114880.

The previous prime is 111220112221073. The next prime is 111220112221159. The reversal of 111220112221102 is 201122211022111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 111220112221102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2620437093 + ... + 2620479535.

It is an arithmetic number, because the mean of its divisors is an integer number (10427708313027).

Almost surely, 2^{111220112221102} is an apocalyptic number.

111220112221102 is a deficient number, since it is larger than the sum of its proper divisors (55623220787330).

111220112221102 is a wasteful number, since it uses less digits than its factorization.

111220112221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114963.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111220112221102 its reverse (201122211022111), we get a palindrome (312342323243213).

The spelling of 111220112221102 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred twelve million, two hundred twenty-one thousand, one hundred two".