110102200020 has 120 divisors (see below), whose sum is σ = 345510401544. Its totient is φ = 29350750464.

The previous prime is 110102199971. The next prime is 110102200031. The reversal of 110102200020 is 20002201011.

It can be written as a sum of positive squares in 4 ways, for example, as 8447080464 + 101655119556 = 91908^2 + 318834^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 110102199975 and 110102200011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5713842 + ... + 5733078.

Almost surely, 2^110102200020 is an apocalyptic number.

110102200020 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 110102200020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172755200772).

110102200020 is an abundant number, since it is smaller than the sum of its proper divisors (235408201524).

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

110102200020 is a wasteful number, since it uses less digits than its factorization.

110102200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22791 (or 22780 counting only the distinct ones).

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

Adding to 110102200020 its reverse (20002201011), we get a palindrome (130104401031).

Subtracting from 110102200020 its reverse (20002201011), we obtain a palindrome (90099999009).

The spelling of 110102200020 in words is "one hundred ten billion, one hundred two million, two hundred thousand, twenty".