121353212 has 6 divisors (see below), whose sum is σ = 212368128. Its totient is φ = 60676604.

The previous prime is 121353203. The next prime is 121353227. The reversal of 121353212 is 212353121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15169148 + ... + 15169155.

It is an arithmetic number, because the mean of its divisors is an integer number (35394688).

Almost surely, 2^121353212 is an apocalyptic number.

It is an amenable number.

121353212 is a deficient number, since it is larger than the sum of its proper divisors (91014916).

121353212 is a wasteful number, since it uses less digits than its factorization.

121353212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30338307 (or 30338305 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 121353212 is about 11016.0433913452. The cubic root of 121353212 is about 495.0895488094.

Subtracting 121353212 from its reverse (212353121), we obtain a palindrome (90999909).

The spelling of 121353212 in words is "one hundred twenty-one million, three hundred fifty-three thousand, two hundred twelve".