121112170 has 8 divisors (see below), whose sum is σ = 218001924. Its totient is φ = 48444864.

The previous prime is 121112129. The next prime is 121112171. The reversal of 121112170 is 71211121.

It can be written as a sum of positive squares in 2 ways, for example, as 116143729 + 4968441 = 10777^2 + 2229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (121112171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6055599 + ... + 6055618.

Almost surely, 2^121112170 is an apocalyptic number.

121112170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121112170 is a deficient number, since it is larger than the sum of its proper divisors (96889754).

121112170 is a wasteful number, since it uses less digits than its factorization.

121112170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12111224.

The product of its (nonzero) digits is 28, while the sum is 16.

The square root of 121112170 is about 11005.0974552704. The cubic root of 121112170 is about 494.7615353106.

Adding to 121112170 its reverse (71211121), we get a palindrome (192323291).

The spelling of 121112170 in words is "one hundred twenty-one million, one hundred twelve thousand, one hundred seventy".