221000222100200 has 48 divisors (see below), whose sum is σ = 531543637651500. Its totient is φ = 85351809912320.

The previous prime is 221000222100187. The next prime is 221000222100247. The reversal of 221000222100200 is 2001222000122.

It can be written as a sum of positive squares in 6 ways, for example, as 147901449852676 + 73098772247524 = 12161474^2 + 8549782^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19051737485 + ... + 19051749084.

Almost surely, 2^{221000222100200} is an apocalyptic number.

221000222100200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221000222100200 is an abundant number, since it is smaller than the sum of its proper divisors (310543415551300).

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

221000222100200 is a wasteful number, since it uses less digits than its factorization.

221000222100200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38103486614 (or 38103486605 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 221000222100200 its reverse (2001222000122), we get a palindrome (223001444100322).

The spelling of 221000222100200 in words is "two hundred twenty-one trillion, two hundred twenty-two million, one hundred thousand, two hundred".