102221111111 has 8 divisors (see below), whose sum is σ = 116868017664. Its totient is φ = 87585177240.

The previous prime is 102221111081. The next prime is 102221111117. The reversal of 102221111111 is 111111122201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102221111111 - 2³⁴ = 85041241927 is a prime.

It is a super-3 number, since 3×102221111111³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

102221111111 is a modest number, since divided by 111111 gives 102221 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221111117) 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 7 ways as a sum of consecutive naturals, for example, 2723195 + ... + 2760476.

It is an arithmetic number, because the mean of its divisors is an integer number (14608502208).

Almost surely, 2^102221111111 is an apocalyptic number.

102221111111 is a deficient number, since it is larger than the sum of its proper divisors (14646906553).

102221111111 is an equidigital number, since it uses as much as digits as its factorization.

102221111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5486341.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 102221111111 its reverse (111111122201), we get a palindrome (213332233312).

The spelling of 102221111111 in words is "one hundred two billion, two hundred twenty-one million, one hundred eleven thousand, one hundred eleven".