121323212 has 12 divisors (see below), whose sum is σ = 219164736. Its totient is φ = 58704720.

The previous prime is 121323199. The next prime is 121323221. The reversal of 121323212 is 212323121.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 489083 + ... + 489330.

It is an arithmetic number, because the mean of its divisors is an integer number (18263728).

Almost surely, 2^121323212 is an apocalyptic number.

It is an amenable number.

121323212 is a deficient number, since it is larger than the sum of its proper divisors (97841524).

121323212 is a wasteful number, since it uses less digits than its factorization.

121323212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978448 (or 978446 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 121323212 is about 11014.6816567707. The cubic root of 121323212 is about 495.0487480474.

Adding to 121323212 its reverse (212323121), we get a palindrome (333646333).

Subtracting 121323212 from its reverse (212323121), we obtain a palindrome (90999909).

The spelling of 121323212 in words is "one hundred twenty-one million, three hundred twenty-three thousand, two hundred twelve".