211420443212 has 48 divisors (see below), whose sum is σ = 425627758080. Its totient is φ = 90878644800.

The previous prime is 211420443211. The next prime is 211420443217. The reversal of 211420443212 is 212344024112.

211420443212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (211420443211) 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 15 ways as a sum of consecutive naturals, for example, 238637 + ... + 692667.

It is an arithmetic number, because the mean of its divisors is an integer number (8867244960).

Almost surely, 2^211420443212 is an apocalyptic number.

211420443212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211420443212 is an abundant number, since it is smaller than the sum of its proper divisors (214207314868).

211420443212 is a wasteful number, since it uses less digits than its factorization.

211420443212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454622 (or 454620 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 211420443212 its reverse (212344024112), we get a palindrome (423764467324).

The spelling of 211420443212 in words is "two hundred eleven billion, four hundred twenty million, four hundred forty-three thousand, two hundred twelve".