111112220222210 has 8 divisors (see below), whose sum is σ = 200001996399996. Its totient is φ = 44444888088880.

The previous prime is 111112220222209. The next prime is 111112220222231. The reversal of 111112220222210 is 12222022211111.

It can be written as a sum of positive squares in 2 ways, for example, as 110030722139809 + 1081498082401 = 10489553^2 + 1039951^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555611011101 + ... + 5555611011120.

Almost surely, 2^{111112220222210} is an apocalyptic number.

111112220222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111112220222210 is a deficient number, since it is larger than the sum of its proper divisors (88889776177786).

111112220222210 is a wasteful number, since it uses less digits than its factorization.

111112220222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111222022228.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 111112220222210 its reverse (12222022211111), we get a palindrome (123334242433321).

The spelling of 111112220222210 in words is "one hundred eleven trillion, one hundred twelve billion, two hundred twenty million, two hundred twenty-two thousand, two hundred ten".