102002221111 has 16 divisors (see below), whose sum is σ = 119550816000. Its totient is φ = 85206901248.

The previous prime is 102002221093. The next prime is 102002221121. The reversal of 102002221111 is 111122200201.

It is not a de Polignac number, because 102002221111 - 2²⁷ = 101868003383 is a prime.

It is a super-2 number, since 2×102002221111² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102002221091 and 102002221100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102002221121) 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, 242221 + ... + 512518.

It is an arithmetic number, because the mean of its divisors is an integer number (7471926000).

Almost surely, 2^102002221111 is an apocalyptic number.

102002221111 is a deficient number, since it is larger than the sum of its proper divisors (17548594889).

102002221111 is an equidigital number, since it uses as much as digits as its factorization.

102002221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755238.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102002221111 its reverse (111122200201), we get a palindrome (213124421312).

The spelling of 102002221111 in words is "one hundred two billion, two million, two hundred twenty-one thousand, one hundred eleven".