221011120020200 has 24 divisors (see below), whose sum is σ = 513850854047430. Its totient is φ = 88404448008000.

The previous prime is 221011120020149. The next prime is 221011120020277. The reversal of 221011120020200 is 2020021110122.

It can be written as a sum of positive squares in 3 ways, for example, as 200702018960356 + 20309101059844 = 14166934^2 + 4506562^2 .

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, 552527799851 + ... + 552527800250.

Almost surely, 2^{221011120020200} is an apocalyptic number.

221011120020200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221011120020200 is an abundant number, since it is smaller than the sum of its proper divisors (292839734027230).

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

221011120020200 is a wasteful number, since it uses less digits than its factorization.

221011120020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105055600117 (or 1105055600108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221011120020200 its reverse (2020021110122), we get a palindrome (223031141130322).

The spelling of 221011120020200 in words is "two hundred twenty-one trillion, eleven billion, one hundred twenty million, twenty thousand, two hundred".