221200121200112 has 20 divisors (see below), whose sum is σ = 428575474431936. Its totient is φ = 110599998766080.

The previous prime is 221200121200087. The next prime is 221200121200127. The reversal of 221200121200112 is 211002121002122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42515408 + ... + 47433744.

Almost surely, 2^{221200121200112} is an apocalyptic number.

It is an amenable number.

221200121200112 is a deficient number, since it is larger than the sum of its proper divisors (207375353231824).

221200121200112 is a wasteful number, since it uses less digits than its factorization.

221200121200112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7729256 (or 7729250 counting only the distinct ones).

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

Adding to 221200121200112 its reverse (211002121002122), we get a palindrome (432202242202234).

The spelling of 221200121200112 in words is "two hundred twenty-one trillion, two hundred billion, one hundred twenty-one million, two hundred thousand, one hundred twelve".