101228424 has 128 divisors (see below), whose sum is σ = 287884800. Its totient is φ = 29399040.

The previous prime is 101228399. The next prime is 101228431. The reversal of 101228424 is 424822101.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 101228394 and 101228403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1043544 + ... + 1043640.

It is an arithmetic number, because the mean of its divisors is an integer number (2249100).

Almost surely, 2^101228424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101228424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143942400).

101228424 is an abundant number, since it is smaller than the sum of its proper divisors (186656376).

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

101228424 is a wasteful number, since it uses less digits than its factorization.

101228424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 101228424 is about 10061.2337215672. The cubic root of 101228424 is about 466.0517665542.

The spelling of 101228424 in words is "one hundred one million, two hundred twenty-eight thousand, four hundred twenty-four".