110021680 has 40 divisors (see below), whose sum is σ = 258211152. Its totient is φ = 43593984.

The previous prime is 110021669. The next prime is 110021687. The reversal of 110021680 is 86120011.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (110021687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2134 + ... + 14986.

Almost surely, 2^110021680 is an apocalyptic number.

110021680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 110021680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129105576).

110021680 is an abundant number, since it is smaller than the sum of its proper divisors (148189472).

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

110021680 is a wasteful number, since it uses less digits than its factorization.

110021680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12973 (or 12967 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 110021680 is about 10489.1219842273. The cubic root of 110021680 is about 479.1734618150.

Adding to 110021680 its reverse (86120011), we get a palindrome (196141691).

The spelling of 110021680 in words is "one hundred ten million, twenty-one thousand, six hundred eighty".