121352212 has 12 divisors (see below), whose sum is σ = 214753140. Its totient is φ = 59994176.

The previous prime is 121352201. The next prime is 121352233. The reversal of 121352212 is 212253121.

It can be written as a sum of positive squares in 2 ways, for example, as 27920656 + 93431556 = 5284^2 + 9666^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121352212.

It is a congruent number.

It is an unprimeable number.

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, 170083 + ... + 170794.

It is an arithmetic number, because the mean of its divisors is an integer number (17896095).

Almost surely, 2^121352212 is an apocalyptic number.

It is an amenable number.

121352212 is a deficient number, since it is larger than the sum of its proper divisors (93400928).

121352212 is a wasteful number, since it uses less digits than its factorization.

121352212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340970 (or 340968 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 121352212 is about 11015.9980029047. The cubic root of 121352212 is about 495.0881888924.

Subtracting 121352212 from its reverse (212253121), we obtain a palindrome (90900909).

The spelling of 121352212 in words is "one hundred twenty-one million, three hundred fifty-two thousand, two hundred twelve".