121534212 has 24 divisors (see below), whose sum is σ = 286092576. Its totient is φ = 40152448.

The previous prime is 121534187. The next prime is 121534219. The reversal of 121534212 is 212435121.

It is not an unprimeable number, because it can be changed into a prime (121534219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43458 + ... + 46169.

It is an arithmetic number, because the mean of its divisors is an integer number (11920524).

Almost surely, 2^121534212 is an apocalyptic number.

121534212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121534212 is an abundant number, since it is smaller than the sum of its proper divisors (164558364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121534212 is a wasteful number, since it uses less digits than its factorization.

121534212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89747 (or 89745 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 121534212 is about 11024.2556211293. The cubic root of 121534212 is about 495.3355708460.

Adding to 121534212 its reverse (212435121), we get a palindrome (333969333).

Subtracting 121534212 from its reverse (212435121), we obtain a palindrome (90900909).

The spelling of 121534212 in words is "one hundred twenty-one million, five hundred thirty-four thousand, two hundred twelve".