111222123100010 has 64 divisors (see below), whose sum is σ = 216730307217312. Its totient is φ = 40851323191296.

The previous prime is 111222123099979. The next prime is 111222123100019. The reversal of 111222123100010 is 10001321222111.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 72060570481 + 111150062529529 = 268441^2 + 10542773^2 .

It is a super-3 number, since 3×111222123100010³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (111222123100019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432849692 + ... + 433106568.

Almost surely, 2^{111222123100010} is an apocalyptic number.

111222123100010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111222123100010 is a deficient number, since it is larger than the sum of its proper divisors (105508184117302).

111222123100010 is a wasteful number, since it uses less digits than its factorization.

111222123100010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274347.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 111222123100010 its reverse (10001321222111), we get a palindrome (121223444322121).

The spelling of 111222123100010 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred twenty-three million, one hundred thousand, ten".