102002222111 has 4 divisors (see below), whose sum is σ = 102003241800. Its totient is φ = 102001202424.

The previous prime is 102002222093. The next prime is 102002222123. The reversal of 102002222111 is 111222200201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 111222200201 = 7 ⋅15888885743.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102002222111 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 (102002222131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341201 + ... + 566058.

It is an arithmetic number, because the mean of its divisors is an integer number (25500810450).

Almost surely, 2^102002222111 is an apocalyptic number.

102002222111 is a deficient number, since it is larger than the sum of its proper divisors (1019689).

102002222111 is an equidigital number, since it uses as much as digits as its factorization.

102002222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019688.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102002222111 its reverse (111222200201), we get a palindrome (213224422312).

The spelling of 102002222111 in words is "one hundred two billion, two million, two hundred twenty-two thousand, one hundred eleven".