124000010221 has 8 divisors (see below), whose sum is σ = 125711636600. Its totient is φ = 122288735232.

The previous prime is 124000010203. The next prime is 124000010231. The reversal of 124000010221 is 122010000421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2387397321 + 121612612900 = 48861^2 + 348730^2 .

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 124000010221 - 2⁹ = 124000009709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124000010231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667255 + ... + 832603.

It is an arithmetic number, because the mean of its divisors is an integer number (15713954575).

Almost surely, 2^124000010221 is an apocalyptic number.

It is an amenable number.

124000010221 is a deficient number, since it is larger than the sum of its proper divisors (1711626379).

124000010221 is a wasteful number, since it uses less digits than its factorization.

124000010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175695.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 124000010221 its reverse (122010000421), we get a palindrome (246010010642).

The spelling of 124000010221 in words is "one hundred twenty-four billion, ten thousand, two hundred twenty-one".