100144440212 has 12 divisors (see below), whose sum is σ = 175258096020. Its totient is φ = 50070698496.

The previous prime is 100144440127. The next prime is 100144440251. The reversal of 100144440212 is 212044441001.

It can be written as a sum of positive squares in 2 ways, for example, as 29667995536 + 70476444676 = 172244^2 + 265474^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225293 + ... + 501044.

It is an arithmetic number, because the mean of its divisors is an integer number (14604841335).

Almost surely, 2^100144440212 is an apocalyptic number.

It is an amenable number.

100144440212 is a deficient number, since it is larger than the sum of its proper divisors (75113655808).

100144440212 is a wasteful number, since it uses less digits than its factorization.

100144440212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760810 (or 760808 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 100144440212 its reverse (212044441001), we get a palindrome (312188881213).

The spelling of 100144440212 in words is "one hundred billion, one hundred forty-four million, four hundred forty thousand, two hundred twelve".