110121620 has 72 divisors (see below), whose sum is σ = 276372936. Its totient is φ = 36723456.

The previous prime is 110121619. The next prime is 110121629. The reversal of 110121620 is 26121011.

It can be written as a sum of positive squares in 4 ways, for example, as 50183056 + 59938564 = 7084^2 + 7742^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 110121595 and 110121604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110121629) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34742 + ... + 37778.

It is an arithmetic number, because the mean of its divisors is an integer number (3838513).

Almost surely, 2^110121620 is an apocalyptic number.

110121620 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 110121620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138186468).

110121620 is an abundant number, since it is smaller than the sum of its proper divisors (166251316).

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

110121620 is a wasteful number, since it uses less digits than its factorization.

110121620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097 (or 3088 counting only the distinct ones).

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

The square root of 110121620 is about 10493.8848859705. The cubic root of 110121620 is about 479.3185062673.

Adding to 110121620 its reverse (26121011), we get a palindrome (136242631).

The spelling of 110121620 in words is "one hundred ten million, one hundred twenty-one thousand, six hundred twenty".