111441220100 has 72 divisors (see below), whose sum is σ = 276434682048. Its totient is φ = 38200060800.

The previous prime is 111441219979. The next prime is 111441220103. The reversal of 111441220100 is 1022144111.

It is not an unprimeable number, because it can be changed into a prime (111441220103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3774395 + ... + 3803805.

It is an arithmetic number, because the mean of its divisors is an integer number (3839370584).

Almost surely, 2^111441220100 is an apocalyptic number.

111441220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111441220100 is an abundant number, since it is smaller than the sum of its proper divisors (164993461948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111441220100 is a wasteful number, since it uses less digits than its factorization.

111441220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34845 (or 34838 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111441220100 its reverse (1022144111), we get a palindrome (112463364211).

The spelling of 111441220100 in words is "one hundred eleven billion, four hundred forty-one million, two hundred twenty thousand, one hundred".