111223101 has 16 divisors (see below), whose sum is σ = 168814080. Its totient is φ = 64476720.

The previous prime is 111223031. The next prime is 111223109. The reversal of 111223101 is 101322111.

It is not a de Polignac number, because 111223101 - 2¹⁵ = 111190333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111223109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72511 + ... + 74028.

It is an arithmetic number, because the mean of its divisors is an integer number (10550880).

Almost surely, 2^111223101 is an apocalyptic number.

111223101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111223101 is a deficient number, since it is larger than the sum of its proper divisors (57590979).

111223101 is a wasteful number, since it uses less digits than its factorization.

111223101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146576.

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

The square root of 111223101 is about 10546.2363428856. The cubic root of 111223101 is about 480.9113199037.

Adding to 111223101 its reverse (101322111), we get a palindrome (212545212).

The spelling of 111223101 in words is "one hundred eleven million, two hundred twenty-three thousand, one hundred one".