111020221130 has 64 divisors (see below), whose sum is σ = 246454403328. Its totient is φ = 35064368640.

The previous prime is 111020221093. The next prime is 111020221139. The reversal of 111020221130 is 31122020111.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (111020221139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 322574 + ... + 571046.

It is an arithmetic number, because the mean of its divisors is an integer number (3850850052).

Almost surely, 2^111020221130 is an apocalyptic number.

111020221130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111020221130 is an abundant number, since it is smaller than the sum of its proper divisors (135434182198).

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

111020221130 is a wasteful number, since it uses less digits than its factorization.

111020221130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248991.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 111020221130 its reverse (31122020111), we get a palindrome (142142241241).

The spelling of 111020221130 in words is "one hundred eleven billion, twenty million, two hundred twenty-one thousand, one hundred thirty".