111221222102 has 8 divisors (see below), whose sum is σ = 166837837296. Its totient is φ = 55608609672.

The previous prime is 111221222087. The next prime is 111221222143. The reversal of 111221222102 is 201222122111.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930233 + ... + 1042964.

It is an arithmetic number, because the mean of its divisors is an integer number (20854729662).

Almost surely, 2^111221222102 is an apocalyptic number.

111221222102 is a deficient number, since it is larger than the sum of its proper divisors (55616615194).

111221222102 is a wasteful number, since it uses less digits than its factorization.

111221222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001382.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111221222102 its reverse (201222122111), we get a palindrome (312443344213).

Subtracting 111221222102 from its reverse (201222122111), we obtain a palindrome (90000900009).

The spelling of 111221222102 in words is "one hundred eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred two".