124220120242 has 8 divisors (see below), whose sum is σ = 187276019436. Its totient is φ = 61794780432.

The previous prime is 124220120237. The next prime is 124220120251. The reversal of 124220120242 is 242021022421.

It can be written as a sum of positive squares in 2 ways, for example, as 88868975881 + 35351144361 = 298109^2 + 188019^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157639353 + ... + 157640140.

Almost surely, 2^124220120242 is an apocalyptic number.

124220120242 is a deficient number, since it is larger than the sum of its proper divisors (63055899194).

124220120242 is a wasteful number, since it uses less digits than its factorization.

124220120242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315279692.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 124220120242 its reverse (242021022421), we get a palindrome (366241142663).

The spelling of 124220120242 in words is "one hundred twenty-four billion, two hundred twenty million, one hundred twenty thousand, two hundred forty-two".