212221102112 has 36 divisors (see below), whose sum is σ = 424139630670. Its totient is φ = 104526740736.

The previous prime is 212221102099. The next prime is 212221102123. The reversal of 212221102112 is 211201122212.

It can be written as a sum of positive squares in only one way, i.e., 166597850896 + 45623251216 = 408164^2 + 213596^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 595037 + ... + 882332.

Almost surely, 2^212221102112 is an apocalyptic number.

It is an amenable number.

212221102112 is a deficient number, since it is larger than the sum of its proper divisors (211918528558).

212221102112 is an equidigital number, since it uses as much as digits as its factorization.

212221102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477513 (or 1477438 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212221102112 its reverse (211201122212), we get a palindrome (423422224324).

The spelling of 212221102112 in words is "two hundred twelve billion, two hundred twenty-one million, one hundred two thousand, one hundred twelve".