100124344221 has 16 divisors (see below), whose sum is σ = 145649192448. Its totient is φ = 60675678000.

The previous prime is 100124344217. The next prime is 100124344231. The reversal of 100124344221 is 122443421001.

It is not a de Polignac number, because 100124344221 - 2² = 100124344217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100124344191 and 100124344200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100124344231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224496 + ... + 500646.

It is an arithmetic number, because the mean of its divisors is an integer number (9103074528).

Almost surely, 2^100124344221 is an apocalyptic number.

100124344221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100124344221 is a deficient number, since it is larger than the sum of its proper divisors (45524848227).

100124344221 is a wasteful number, since it uses less digits than its factorization.

100124344221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287152.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 100124344221 its reverse (122443421001), we get a palindrome (222567765222).

The spelling of 100124344221 in words is "one hundred billion, one hundred twenty-four million, three hundred forty-four thousand, two hundred twenty-one".