111122211010 has 16 divisors (see below), whose sum is σ = 200023774776. Its totient is φ = 44448041088.

The previous prime is 111122211007. The next prime is 111122211077. The reversal of 111122211010 is 10112221111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 110348202969 + 774008041 = 332187^2 + 27821^2 .

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 7 ways as a sum of consecutive naturals, for example, 998104 + ... + 1103836.

Almost surely, 2^111122211010 is an apocalyptic number.

111122211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111122211010 is a deficient number, since it is larger than the sum of its proper divisors (88901563766).

111122211010 is a wasteful number, since it uses less digits than its factorization.

111122211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210837.

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

Adding to 111122211010 its reverse (10112221111), we get a palindrome (121234432121).

The spelling of 111122211010 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred eleven thousand, ten".