100722447424 has 21 divisors (see below), whose sum is σ = 199876144951. Its totient is φ = 50359954240.

The previous prime is 100722447421. The next prime is 100722447439. The reversal of 100722447424 is 424744227001.

The square root of 100722447424 is 317368.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×100722447424² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100722447421) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2519109 + ... + 2558779.

Almost surely, 2^100722447424 is an apocalyptic number.

100722447424 is the 317368-th square number.

It is an amenable number.

100722447424 is a deficient number, since it is larger than the sum of its proper divisors (99153697527).

100722447424 is an frugal number, since it uses more digits than its factorization.

100722447424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79354 (or 39673 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 37.

The spelling of 100722447424 in words is "one hundred billion, seven hundred twenty-two million, four hundred forty-seven thousand, four hundred twenty-four".