121212032 has 16 divisors (see below), whose sum is σ = 241477350. Its totient is φ = 60605952.

The previous prime is 121212017. The next prime is 121212071. The reversal of 121212032 is 230212121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 77862976 + 43349056 = 8824^2 + 6584^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 121211998 and 121212016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473357 + ... + 473612.

Almost surely, 2^121212032 is an apocalyptic number.

It is an amenable number.

121212032 is a deficient number, since it is larger than the sum of its proper divisors (120265318).

121212032 is an frugal number, since it uses more digits than its factorization.

121212032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946983 (or 946971 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121212032 is about 11009.6335997162. The cubic root of 121212032 is about 494.8974817450.

Adding to 121212032 its reverse (230212121), we get a palindrome (351424153).

The spelling of 121212032 in words is "one hundred twenty-one million, two hundred twelve thousand, thirty-two".