100216042 has 4 divisors (see below), whose sum is σ = 150324066. Its totient is φ = 50108020.

The previous prime is 100216021. The next prime is 100216073. The reversal of 100216042 is 240612001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 94070601 + 6145441 = 9699^2 + 2479^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25054009 + ... + 25054012.

Almost surely, 2^100216042 is an apocalyptic number.

100216042 is a deficient number, since it is larger than the sum of its proper divisors (50108024).

100216042 is an equidigital number, since it uses as much as digits as its factorization.

100216042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50108023.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 100216042 is about 10010.7962720255. The cubic root of 100216042 is about 464.4929023145.

Adding to 100216042 its reverse (240612001), we get a palindrome (340828043).

The spelling of 100216042 in words is "one hundred million, two hundred sixteen thousand, forty-two".