212102201144 has 32 divisors (see below), whose sum is σ = 400883904000. Its totient is φ = 105200081280.

The previous prime is 212102201141. The next prime is 212102201149. The reversal of 212102201144 is 441102201212.

212102201144 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212102201141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9479282 + ... + 9501630.

It is an arithmetic number, because the mean of its divisors is an integer number (12527622000).

Almost surely, 2^212102201144 is an apocalyptic number.

It is an amenable number.

212102201144 is a deficient number, since it is larger than the sum of its proper divisors (188781702856).

212102201144 is a wasteful number, since it uses less digits than its factorization.

212102201144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31823 (or 31819 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 212102201144 its reverse (441102201212), we get a palindrome (653204402356).

The spelling of 212102201144 in words is "two hundred twelve billion, one hundred two million, two hundred one thousand, one hundred forty-four".