121126210 has 8 divisors (see below), whose sum is σ = 218027196. Its totient is φ = 48450480.

The previous prime is 121126193. The next prime is 121126217. The reversal of 121126210 is 12621121.

It can be written as a sum of positive squares in 2 ways, for example, as 113656921 + 7469289 = 10661^2 + 2733^2 .

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 (121126217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6056301 + ... + 6056320.

Almost surely, 2^121126210 is an apocalyptic number.

121126210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121126210 is a deficient number, since it is larger than the sum of its proper divisors (96900986).

121126210 is a wasteful number, since it uses less digits than its factorization.

121126210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12112628.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 121126210 is about 11005.7353230032. The cubic root of 121126210 is about 494.7806530798.

Adding to 121126210 its reverse (12621121), we get a palindrome (133747331).

The spelling of 121126210 in words is "one hundred twenty-one million, one hundred twenty-six thousand, two hundred ten".