111121222010 has 32 divisors (see below), whose sum is σ = 200329930944. Its totient is φ = 44379280000.

The previous prime is 111121221989. The next prime is 111121222067. The reversal of 111121222010 is 10222121111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21486725 + ... + 21491895.

It is an arithmetic number, because the mean of its divisors is an integer number (6260310342).

Almost surely, 2^111121222010 is an apocalyptic number.

111121222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111121222010 is a deficient number, since it is larger than the sum of its proper divisors (89208708934).

111121222010 is a wasteful number, since it uses less digits than its factorization.

111121222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8110.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111121222010 its reverse (10222121111), we get a palindrome (121343343121).

It can be divided in two parts, 111 and 121222010, that added together give a palindrome (121222121).

The spelling of 111121222010 in words is "one hundred eleven billion, one hundred twenty-one million, two hundred twenty-two thousand, ten".