221300240200 has 48 divisors (see below), whose sum is σ = 554101761780. Its totient is φ = 81710856960.

The previous prime is 221300240173. The next prime is 221300240219. The reversal of 221300240200 is 2042003122.

It can be written as a sum of positive squares in 6 ways, for example, as 28208546116 + 193091694084 = 167954^2 + 439422^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42555139 + ... + 42560338.

Almost surely, 2^221300240200 is an apocalyptic number.

221300240200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221300240200 is an abundant number, since it is smaller than the sum of its proper divisors (332801521580).

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

221300240200 is a wasteful number, since it uses less digits than its factorization.

221300240200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85115506 (or 85115497 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 221300240200 its reverse (2042003122), we get a palindrome (223342243322).

The spelling of 221300240200 in words is "two hundred twenty-one billion, three hundred million, two hundred forty thousand, two hundred".