121019212 has 12 divisors (see below), whose sum is σ = 213727360. Its totient is φ = 59954256.

The previous prime is 121019177. The next prime is 121019221. The reversal of 121019212 is 212910121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121019212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138348 + ... + 139219.

Almost surely, 2^121019212 is an apocalyptic number.

It is an amenable number.

121019212 is a deficient number, since it is larger than the sum of its proper divisors (92708148).

121019212 is a wasteful number, since it uses less digits than its factorization.

121019212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277680 (or 277678 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 121019212 is about 11000.8732380661. The cubic root of 121019212 is about 494.6349204139.

Adding to 121019212 its reverse (212910121), we get a palindrome (333929333).

The spelling of 121019212 in words is "one hundred twenty-one million, nineteen thousand, two hundred twelve".