100228881 has 8 divisors (see below), whose sum is σ = 133786080. Its totient is φ = 66745472.

The previous prime is 100228867. The next prime is 100228903. The reversal of 100228881 is 188822001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100228881 - 2¹⁹ = 99704593 is a prime.

It is a super-2 number, since 2×100228881² = 20091657173024322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100228811) 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, 15195 + ... + 20768.

It is an arithmetic number, because the mean of its divisors is an integer number (16723260).

Almost surely, 2^100228881 is an apocalyptic number.

It is an amenable number.

100228881 is a deficient number, since it is larger than the sum of its proper divisors (33557199).

100228881 is an equidigital number, since it uses as much as digits as its factorization.

100228881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36895.

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 100228881 is about 10011.4375091692. The cubic root of 100228881 is about 464.5127373615.

The spelling of 100228881 in words is "one hundred million, two hundred twenty-eight thousand, eight hundred eighty-one".