212221244410004 has 12 divisors (see below), whose sum is σ = 371387472323700. Its totient is φ = 106110538031808.

The previous prime is 212221244409991. The next prime is 212221244410061. The reversal of 212221244410004 is 400014442122212.

It can be written as a sum of positive squares in 2 ways, for example, as 20096751043600 + 192124493366404 = 4482940^2 + 13860898^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 15189569 + ... + 25596200.

It is an arithmetic number, because the mean of its divisors is an integer number (30948956026975).

Almost surely, 2^{212221244410004} is an apocalyptic number.

It is an amenable number.

212221244410004 is a deficient number, since it is larger than the sum of its proper divisors (159166227913696).

212221244410004 is a wasteful number, since it uses less digits than its factorization.

212221244410004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42086602 (or 42086600 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 29.

Adding to 212221244410004 its reverse (400014442122212), we get a palindrome (612235686532216).

The spelling of 212221244410004 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred forty-four million, four hundred ten thousand, four".