212213420344 has 8 divisors (see below), whose sum is σ = 397900163160. Its totient is φ = 106106710168.

The previous prime is 212213420291. The next prime is 212213420371. The reversal of 212213420344 is 443024312212.

212213420344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13263338764 + ... + 13263338779.

It is an arithmetic number, because the mean of its divisors is an integer number (49737520395).

Almost surely, 2^212213420344 is an apocalyptic number.

It is an amenable number.

212213420344 is a deficient number, since it is larger than the sum of its proper divisors (185686742816).

212213420344 is a wasteful number, since it uses less digits than its factorization.

212213420344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26526677549 (or 26526677545 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 212213420344 its reverse (443024312212), we get a palindrome (655237732556).

The spelling of 212213420344 in words is "two hundred twelve billion, two hundred thirteen million, four hundred twenty thousand, three hundred forty-four".