100720722 has 16 divisors (see below), whose sum is σ = 202795200. Its totient is φ = 33347952.

The previous prime is 100720721. The next prime is 100720757. The reversal of 100720722 is 227027001.

It is a super-3 number, since 3×100720722³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (100720721) 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, 55438 + ... + 57225.

It is an arithmetic number, because the mean of its divisors is an integer number (12674700).

Almost surely, 2^100720722 is an apocalyptic number.

100720722 is an abundant number, since it is smaller than the sum of its proper divisors (102074478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100720722 is a wasteful number, since it uses less digits than its factorization.

100720722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112817.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 100720722 is about 10035.9714029086. The cubic root of 100720722 is about 465.2713135124.

Adding to 100720722 its reverse (227027001), we get a palindrome (327747723).

The spelling of 100720722 in words is "one hundred million, seven hundred twenty thousand, seven hundred twenty-two".