111112222101 has 8 divisors (see below), whose sum is σ = 148151693280. Its totient is φ = 74073782832.

The previous prime is 111112222087. The next prime is 111112222157. The reversal of 111112222101 is 101222211111.

It is a happy number.

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

It is not a de Polignac number, because 111112222101 - 2⁵ = 111112222069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112222901) 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, 43651 + ... + 473423.

It is an arithmetic number, because the mean of its divisors is an integer number (18518961660).

Almost surely, 2^111112222101 is an apocalyptic number.

It is an amenable number.

111112222101 is a deficient number, since it is larger than the sum of its proper divisors (37039471179).

111112222101 is an equidigital number, since it uses as much as digits as its factorization.

111112222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515955.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111112222101 its reverse (101222211111), we get a palindrome (212334433212).

The spelling of 111112222101 in words is "one hundred eleven billion, one hundred twelve million, two hundred twenty-two thousand, one hundred one".