212103642226 has 16 divisors (see below), whose sum is σ = 363636126720. Its totient is φ = 90894090240.

The previous prime is 212103642221. The next prime is 212103642281. The reversal of 212103642226 is 622246301212.

212103642226 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 (212103642221) 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, 444370 + ... + 788461.

It is an arithmetic number, because the mean of its divisors is an integer number (22727257920).

Almost surely, 2^212103642226 is an apocalyptic number.

212103642226 is a deficient number, since it is larger than the sum of its proper divisors (151532484494).

212103642226 is a wasteful number, since it uses less digits than its factorization.

212103642226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245129.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 212103642226 its reverse (622246301212), we get a palindrome (834349943438).

The spelling of 212103642226 in words is "two hundred twelve billion, one hundred three million, six hundred forty-two thousand, two hundred twenty-six".