133221124 has 24 divisors (see below), whose sum is σ = 240242688. Its totient is φ = 64606080.

The previous prime is 133221107. The next prime is 133221149. The reversal of 133221124 is 421122331.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18109 + ... + 24379.

It is an arithmetic number, because the mean of its divisors is an integer number (10010112).

Almost surely, 2^133221124 is an apocalyptic number.

It is an amenable number.

133221124 is a deficient number, since it is larger than the sum of its proper divisors (107021564).

133221124 is a wasteful number, since it uses less digits than its factorization.

133221124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6435 (or 6433 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 133221124 is about 11542.1455544452. The cubic root of 133221124 is about 510.7296029237.

Adding to 133221124 its reverse (421122331), we get a palindrome (554343455).

The spelling of 133221124 in words is "one hundred thirty-three million, two hundred twenty-one thousand, one hundred twenty-four".