121365212 has 12 divisors (see below), whose sum is σ = 214011336. Its totient is φ = 60219120.

The previous prime is 121365197. The next prime is 121365229. The reversal of 121365212 is 212563121.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 115283 + ... + 116330.

It is an arithmetic number, because the mean of its divisors is an integer number (17834278).

Almost surely, 2^121365212 is an apocalyptic number.

It is an amenable number.

121365212 is a deficient number, since it is larger than the sum of its proper divisors (92646124).

121365212 is a wasteful number, since it uses less digits than its factorization.

121365212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231748 (or 231746 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 121365212 is about 11016.5880380452. The cubic root of 121365212 is about 495.1058672314.

The spelling of 121365212 in words is "one hundred twenty-one million, three hundred sixty-five thousand, two hundred twelve".