100220200028 has 48 divisors (see below), whose sum is σ = 200028074400. Its totient is φ = 43525607424.

The previous prime is 100220200021. The next prime is 100220200037. The reversal of 100220200028 is 820002022001.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 100220199979 and 100220200015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220200021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6090500 + ... + 6106932.

It is an arithmetic number, because the mean of its divisors is an integer number (4167251550).

Almost surely, 2^100220200028 is an apocalyptic number.

It is an amenable number.

100220200028 is a deficient number, since it is larger than the sum of its proper divisors (99807874372).

100220200028 is a wasteful number, since it uses less digits than its factorization.

100220200028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23366 (or 23364 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 100220200028 its reverse (820002022001), we get a palindrome (920222222029).

The spelling of 100220200028 in words is "one hundred billion, two hundred twenty million, two hundred thousand, twenty-eight".