121233772 has 36 divisors (see below), whose sum is σ = 234135328. Its totient is φ = 54885600.

The previous prime is 121233751. The next prime is 121233787. The reversal of 121233772 is 277332121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121233772.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223822 + ... + 224362.

Almost surely, 2^121233772 is an apocalyptic number.

It is an amenable number.

121233772 is a deficient number, since it is larger than the sum of its proper divisors (112901556).

121233772 is a wasteful number, since it uses less digits than its factorization.

121233772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030 (or 1017 counting only the distinct ones).

The product of its digits is 3528, while the sum is 28.

The square root of 121233772 is about 11010.6208725939. The cubic root of 121233772 is about 494.9270674441.

Adding to 121233772 its reverse (277332121), we get a palindrome (398565893).

The spelling of 121233772 in words is "one hundred twenty-one million, two hundred thirty-three thousand, seven hundred seventy-two".