102002211111 has 8 divisors (see below), whose sum is σ = 136213156224. Its totient is φ = 67896370040.

The previous prime is 102002211107. The next prime is 102002211127. The reversal of 102002211111 is 111112200201.

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 102002211111 - 2² = 102002211107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102002211611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26273745 + ... + 26277626.

It is an arithmetic number, because the mean of its divisors is an integer number (17026644528).

Almost surely, 2^102002211111 is an apocalyptic number.

102002211111 is a deficient number, since it is larger than the sum of its proper divisors (34210945113).

102002211111 is an equidigital number, since it uses as much as digits as its factorization.

102002211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52552021.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102002211111 its reverse (111112200201), we get a palindrome (213114411312).

The spelling of 102002211111 in words is "one hundred two billion, two million, two hundred eleven thousand, one hundred eleven".