121732012 has 24 divisors (see below), whose sum is σ = 225973440. Its totient is φ = 57217680.

The previous prime is 121732007. The next prime is 121732057. The reversal of 121732012 is 210237121.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3843 + ... + 16069.

It is an arithmetic number, because the mean of its divisors is an integer number (9415560).

Almost surely, 2^121732012 is an apocalyptic number.

It is an amenable number.

121732012 is a deficient number, since it is larger than the sum of its proper divisors (104241428).

121732012 is a wasteful number, since it uses less digits than its factorization.

121732012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12381 (or 12379 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 121732012 is about 11033.2231011613. The cubic root of 121732012 is about 495.6041489107.

Adding to 121732012 its reverse (210237121), we get a palindrome (331969133).

The spelling of 121732012 in words is "one hundred twenty-one million, seven hundred thirty-two thousand, twelve".