100216880 has 20 divisors (see below), whose sum is σ = 233004432. Its totient is φ = 40086720.

The previous prime is 100216877. The next prime is 100216913. The reversal of 100216880 is 88612001.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626276 + ... + 626435.

Almost surely, 2^100216880 is an apocalyptic number.

100216880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100216880 is an abundant number, since it is smaller than the sum of its proper divisors (132787552).

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

100216880 is a wasteful number, since it uses less digits than its factorization.

100216880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252724 (or 1252718 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 100216880 is about 10010.8381267504. The cubic root of 100216880 is about 464.4941969973.

Adding to 100216880 its reverse (88612001), we get a palindrome (188828881).

The spelling of 100216880 in words is "one hundred million, two hundred sixteen thousand, eight hundred eighty".