111002101210102 has 4 divisors (see below), whose sum is σ = 166503151815156. Its totient is φ = 55501050605050.

The previous prime is 111002101210081. The next prime is 111002101210103. The reversal of 111002101210102 is 201012101200111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111002101210103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27750525302524 + ... + 27750525302527.

It is an arithmetic number, because the mean of its divisors is an integer number (41625787953789).

Almost surely, 2^{111002101210102} is an apocalyptic number.

111002101210102 is a deficient number, since it is larger than the sum of its proper divisors (55501050605054).

111002101210102 is an equidigital number, since it uses as much as digits as its factorization.

111002101210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55501050605053.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111002101210102 its reverse (201012101200111), we get a palindrome (312014202410213).

Subtracting 111002101210102 from its reverse (201012101200111), we obtain a palindrome (90009999990009).

The spelling of 111002101210102 in words is "one hundred eleven trillion, two billion, one hundred one million, two hundred ten thousand, one hundred two".