121623212 has 12 divisors (see below), whose sum is σ = 213594696. Its totient is φ = 60596160.

The previous prime is 121623163. The next prime is 121623223. The reversal of 121623212 is 212326121.

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, 52589 + ... + 54852.

It is an arithmetic number, because the mean of its divisors is an integer number (17799558).

Almost surely, 2^121623212 is an apocalyptic number.

It is an amenable number.

121623212 is a deficient number, since it is larger than the sum of its proper divisors (91971484).

121623212 is a wasteful number, since it uses less digits than its factorization.

121623212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107728 (or 107726 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 121623212 is about 11028.2914361201. The cubic root of 121623212 is about 495.4564534307.

Adding to 121623212 its reverse (212326121), we get a palindrome (333949333).

The spelling of 121623212 in words is "one hundred twenty-one million, six hundred twenty-three thousand, two hundred twelve".