121233572 has 12 divisors (see below), whose sum is σ = 219474780. Its totient is φ = 58526496.

The previous prime is 121233569. The next prime is 121233577. The reversal of 121233572 is 275332121.

It can be written as a sum of positive squares in 2 ways, for example, as 21752896 + 99480676 = 4664^2 + 9974^2 .

It is not an unprimeable number, because it can be changed into a prime (121233577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522443 + ... + 522674.

It is an arithmetic number, because the mean of its divisors is an integer number (18289565).

Almost surely, 2^121233572 is an apocalyptic number.

It is an amenable number.

121233572 is a deficient number, since it is larger than the sum of its proper divisors (98241208).

121233572 is a wasteful number, since it uses less digits than its factorization.

121233572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045150 (or 1045148 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 121233572 is about 11010.6117904502. The cubic root of 121233572 is about 494.9267952826.

Adding to 121233572 its reverse (275332121), we get a palindrome (396565693).

The spelling of 121233572 in words is "one hundred twenty-one million, two hundred thirty-three thousand, five hundred seventy-two".