124221133 has 4 divisors (see below), whose sum is σ = 124282908. Its totient is φ = 124159360.

The previous prime is 124221131. The next prime is 124221179. The reversal of 124221133 is 331122421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17656804 + 106564329 = 4202^2 + 10323^2 .

It is a cyclic number.

It is not a de Polignac number, because 124221133 - 2¹ = 124221131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124221133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124221131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27766 + ... + 31927.

It is an arithmetic number, because the mean of its divisors is an integer number (31070727).

Almost surely, 2^124221133 is an apocalyptic number.

It is an amenable number.

124221133 is a deficient number, since it is larger than the sum of its proper divisors (61775).

124221133 is an equidigital number, since it uses as much as digits as its factorization.

124221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61774.

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

The square root of 124221133 is about 11145.4534676701. The cubic root of 124221133 is about 498.9593462489.

Adding to 124221133 its reverse (331122421), we get a palindrome (455343554).

The spelling of 124221133 in words is "one hundred twenty-four million, two hundred twenty-one thousand, one hundred thirty-three".