111021212102 has 8 divisors (see below), whose sum is σ = 167321069112. Its totient is φ = 55247522400.

The previous prime is 111021212023. The next prime is 111021212119. The reversal of 111021212102 is 201212120111.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131541299 + ... + 131542142.

It is an arithmetic number, because the mean of its divisors is an integer number (20915133639).

Almost surely, 2^111021212102 is an apocalyptic number.

111021212102 is a deficient number, since it is larger than the sum of its proper divisors (56299857010).

111021212102 is a wasteful number, since it uses less digits than its factorization.

111021212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263083654.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111021212102 its reverse (201212120111), we get a palindrome (312233332213).

The spelling of 111021212102 in words is "one hundred eleven billion, twenty-one million, two hundred twelve thousand, one hundred two".