110021004 has 120 divisors (see below), whose sum is σ = 301870800. Its totient is φ = 34909056.

The previous prime is 110020993. The next prime is 110021011. The reversal of 110021004 is 400120011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 738322 + ... + 738470.

It is an arithmetic number, because the mean of its divisors is an integer number (2515590).

Almost surely, 2^110021004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 110021004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150935400).

110021004 is an abundant number, since it is smaller than the sum of its proper divisors (191849796).

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

110021004 is a wasteful number, since it uses less digits than its factorization.

110021004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 110021004 is about 10489.0897603176. The cubic root of 110021004 is about 479.1724804268.

Adding to 110021004 its reverse (400120011), we get a palindrome (510141015).

The spelling of 110021004 in words is "one hundred ten million, twenty-one thousand, four".