111102101021222 has 4 divisors (see below), whose sum is σ = 166653151531836. Its totient is φ = 55551050510610.

The previous prime is 111102101021161. The next prime is 111102101021237. The reversal of 111102101021222 is 222120101201111.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 111102101021222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27775525255304 + ... + 27775525255307.

It is an arithmetic number, because the mean of its divisors is an integer number (41663287882959).

Almost surely, 2^{111102101021222} is an apocalyptic number.

111102101021222 is a deficient number, since it is larger than the sum of its proper divisors (55551050510614).

111102101021222 is an equidigital number, since it uses as much as digits as its factorization.

111102101021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55551050510613.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111102101021222 its reverse (222120101201111), we get a palindrome (333222202222333).

The spelling of 111102101021222 in words is "one hundred eleven trillion, one hundred two billion, one hundred one million, twenty-one thousand, two hundred twenty-two".