102222220111 has 16 divisors (see below), whose sum is σ = 111766560768. Its totient is φ = 92720023200.

The previous prime is 102222220103. The next prime is 102222220129. The reversal of 102222220111 is 111022222201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102222220111 - 2³ = 102222220103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222220151) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 10104946 + ... + 10115056.

It is an arithmetic number, because the mean of its divisors is an integer number (6985410048).

Almost surely, 2^102222220111 is an apocalyptic number.

102222220111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102222220111 is a deficient number, since it is larger than the sum of its proper divisors (9544340657).

102222220111 is a wasteful number, since it uses less digits than its factorization.

102222220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12102.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102222220111 its reverse (111022222201), we get a palindrome (213244442312).

It can be divided in two parts, 1022222201 and 11, that multiplied together give a palindrome (11244444211).

The spelling of 102222220111 in words is "one hundred two billion, two hundred twenty-two million, two hundred twenty thousand, one hundred eleven".