17120112210 has 80 divisors (see below), whose sum is σ = 46225619352. Its totient is φ = 4546368000.

The previous prime is 17120112133. The next prime is 17120112223. The reversal of 17120112210 is 1221102171.

It can be written as a sum of positive squares in 4 ways, for example, as 17107855209 + 12257001 = 130797^2 + 3501^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 151360 + ... + 239060.

Almost surely, 2^17120112210 is an apocalyptic number.

17120112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 17120112210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23112809676).

17120112210 is an abundant number, since it is smaller than the sum of its proper divisors (29105507142).

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

17120112210 is a wasteful number, since it uses less digits than its factorization.

17120112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87961 (or 87952 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 18.

Adding to 17120112210 its reverse (1221102171), we get a palindrome (18341214381).

The spelling of 17120112210 in words is "seventeen billion, one hundred twenty million, one hundred twelve thousand, two hundred ten".