121601170 has 16 divisors (see below), whose sum is σ = 231757848. Its totient is φ = 45779200.

The previous prime is 121601167. The next prime is 121601171. The reversal of 121601170 is 71106121.

It can be written as a sum of positive squares in 4 ways, for example, as 117094041 + 4507129 = 10821^2 + 2123^2 .

It is not an unprimeable number, because it can be changed into a prime (121601171) 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 7 ways as a sum of consecutive naturals, for example, 357481 + ... + 357820.

Almost surely, 2^121601170 is an apocalyptic number.

121601170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121601170 is a deficient number, since it is larger than the sum of its proper divisors (110156678).

121601170 is a wasteful number, since it uses less digits than its factorization.

121601170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715325.

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 121601170 is about 11027.2920519954. The cubic root of 121601170 is about 495.4265207921.

Adding to 121601170 its reverse (71106121), we get a palindrome (192707291).

It can be divided in two parts, 121601 and 170, that added together give a triangular number (121771 = T₄₉₃).

The spelling of 121601170 in words is "one hundred twenty-one million, six hundred one thousand, one hundred seventy".