124002221 has 8 divisors (see below), whose sum is σ = 141792960. Its totient is φ = 106230528.

The previous prime is 124002217. The next prime is 124002293. The reversal of 124002221 is 122200421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124002221 - 2² = 124002217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124002196 and 124002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124001221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14285 + ... + 21261.

It is an arithmetic number, because the mean of its divisors is an integer number (17724120).

Almost surely, 2^124002221 is an apocalyptic number.

It is an amenable number.

124002221 is a deficient number, since it is larger than the sum of its proper divisors (17790739).

124002221 is an equidigital number, since it uses as much as digits as its factorization.

124002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9523.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 124002221 is about 11135.6284510574. The cubic root of 124002221 is about 498.6660724392. Note that the first 3 decimals are identical.

Adding to 124002221 its reverse (122200421), we get a palindrome (246202642).

The spelling of 124002221 in words is "one hundred twenty-four million, two thousand, two hundred twenty-one".