111011212210 has 8 divisors (see below), whose sum is σ = 199820181996. Its totient is φ = 44404484880.

The previous prime is 111011212159. The next prime is 111011212229. The reversal of 111011212210 is 12212110111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 89977801369 + 21033410841 = 299963^2 + 145029^2 .

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, 5550560601 + ... + 5550560620.

Almost surely, 2^111011212210 is an apocalyptic number.

111011212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111011212210 is a deficient number, since it is larger than the sum of its proper divisors (88808969786).

111011212210 is a wasteful number, since it uses less digits than its factorization.

111011212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11101121228.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111011212210 its reverse (12212110111), we get a palindrome (123223322321).

The spelling of 111011212210 in words is "one hundred eleven billion, eleven million, two hundred twelve thousand, two hundred ten".