221201122002200 has 24 divisors (see below), whose sum is σ = 514292608655580. Its totient is φ = 88480448800800.

The previous prime is 221201122002151. The next prime is 221201122002251. The reversal of 221201122002200 is 2200221102122.

It is a happy number.

It is a congruent number.

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, 553002804806 + ... + 553002805205.

Almost surely, 2^{221201122002200} is an apocalyptic number.

221201122002200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221201122002200 is an abundant number, since it is smaller than the sum of its proper divisors (293091486653380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221201122002200 is a wasteful number, since it uses less digits than its factorization.

221201122002200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106005610027 (or 1106005610018 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221201122002200 its reverse (2200221102122), we get a palindrome (223401343104322).

The spelling of 221201122002200 in words is "two hundred twenty-one trillion, two hundred one billion, one hundred twenty-two million, two thousand, two hundred".