212131100002 has 4 divisors (see below), whose sum is σ = 318196650006. Its totient is φ = 106065550000.

The previous prime is 212131099997. The next prime is 212131100009. The reversal of 212131100002 is 200001131212.

212131100002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 123559983121 + 88571116881 = 351511^2 + 297609^2 .

It is not an unprimeable number, because it can be changed into a prime (212131100009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53032774999 + ... + 53032775002.

Almost surely, 2^212131100002 is an apocalyptic number.

212131100002 is a deficient number, since it is larger than the sum of its proper divisors (106065550004).

212131100002 is a wasteful number, since it uses less digits than its factorization.

212131100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106065550003.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 212131100002 its reverse (200001131212), we get a palindrome (412132231214).

The spelling of 212131100002 in words is "two hundred twelve billion, one hundred thirty-one million, one hundred thousand, two".