100215444242 has 8 divisors (see below), whose sum is σ = 150494575116. Its totient is φ = 50050585872.

The previous prime is 100215444229. The next prime is 100215444247. The reversal of 100215444242 is 242444512001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 84575690761 + 15639753481 = 290819^2 + 125059^2 .

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

It is not an unprimeable number, because it can be changed into a prime (100215444247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28565933 + ... + 28569440.

Almost surely, 2^100215444242 is an apocalyptic number.

100215444242 is a deficient number, since it is larger than the sum of its proper divisors (50279130874).

100215444242 is an equidigital number, since it uses as much as digits as its factorization.

100215444242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57136252.

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 100215444242 its reverse (242444512001), we get a palindrome (342659956243).

The spelling of 100215444242 in words is "one hundred billion, two hundred fifteen million, four hundred forty-four thousand, two hundred forty-two".