100203312212 has 12 divisors (see below), whose sum is σ = 181402548180. Its totient is φ = 48374012736.

The previous prime is 100203312193. The next prime is 100203312217. The reversal of 100203312212 is 212213302001.

It can be written as a sum of positive squares in 2 ways, for example, as 66334062916 + 33869249296 = 257554^2 + 184036^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100203312217) by changing a digit.

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, 431910713 + ... + 431910944.

It is an arithmetic number, because the mean of its divisors is an integer number (15116879015).

Almost surely, 2^100203312212 is an apocalyptic number.

It is an amenable number.

100203312212 is a deficient number, since it is larger than the sum of its proper divisors (81199235968).

100203312212 is a wasteful number, since it uses less digits than its factorization.

100203312212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863821690 (or 863821688 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 100203312212 its reverse (212213302001), we get a palindrome (312416614213).

The spelling of 100203312212 in words is "one hundred billion, two hundred three million, three hundred twelve thousand, two hundred twelve".