110021021200 has 120 divisors (see below), whose sum is σ = 279198884096. Its totient is φ = 41598144000.

The previous prime is 110021021179. The next prime is 110021021207. The reversal of 110021021200 is 2120120011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (110021021207) 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 23 ways as a sum of consecutive naturals, for example, 430030 + ... + 636370.

Almost surely, 2^110021021200 is an apocalyptic number.

110021021200 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 110021021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139599442048).

110021021200 is an abundant number, since it is smaller than the sum of its proper divisors (169177862896).

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

110021021200 is a wasteful number, since it uses less digits than its factorization.

110021021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206433 (or 206422 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 110021021200 its reverse (2120120011), we get a palindrome (112141141211).

The spelling of 110021021200 in words is "one hundred ten billion, twenty-one million, twenty-one thousand, two hundred".