111222201 has 8 divisors (see below), whose sum is σ = 148420000. Its totient is φ = 74086272.

The previous prime is 111222193. The next prime is 111222229. The reversal of 111222201 is 102222111.

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

It is not a de Polignac number, because 111222201 - 2³ = 111222193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111222301) 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, 11095 + ... + 18588.

It is an arithmetic number, because the mean of its divisors is an integer number (18552500).

Almost surely, 2^111222201 is an apocalyptic number.

It is an amenable number.

111222201 is a deficient number, since it is larger than the sum of its proper divisors (37197799).

111222201 is a wasteful number, since it uses less digits than its factorization.

111222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30935.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 111222201 is about 10546.1936735488. The cubic root of 111222201 is about 480.9100227470.

Adding to 111222201 its reverse (102222111), we get a palindrome (213444312).

The spelling of 111222201 in words is "one hundred eleven million, two hundred twenty-two thousand, two hundred one".