212221200109066 has 32 divisors (see below), whose sum is σ = 338653075608000. Its totient is φ = 99583514819712.

The previous prime is 212221200109057. The next prime is 212221200109067. The reversal of 212221200109066 is 660901002122212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212221200109067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348103956 + ... + 348713071.

It is an arithmetic number, because the mean of its divisors is an integer number (10582908612750).

Almost surely, 2^{212221200109066} is an apocalyptic number.

212221200109066 is a deficient number, since it is larger than the sum of its proper divisors (126431875498934).

212221200109066 is a wasteful number, since it uses less digits than its factorization.

212221200109066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696817206.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 212221200109066 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred million, one hundred nine thousand, sixty-six".