121241210 has 16 divisors (see below), whose sum is σ = 222352776. Its totient is φ = 47581248.

The previous prime is 121241189. The next prime is 121241213. The reversal of 121241210 is 12142121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 103693489 + 17547721 = 10183^2 + 4189^2 .

It is not an unprimeable number, because it can be changed into a prime (121241213) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 113849 + ... + 114908.

Almost surely, 2^121241210 is an apocalyptic number.

121241210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121241210 is a deficient number, since it is larger than the sum of its proper divisors (101111566).

121241210 is a wasteful number, since it uses less digits than its factorization.

121241210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228817.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 121241210 is about 11010.9586321991. The cubic root of 121241210 is about 494.9371889148.

Adding to 121241210 its reverse (12142121), we get a palindrome (133383331).

The spelling of 121241210 in words is "one hundred twenty-one million, two hundred forty-one thousand, two hundred ten".