212200303221 has 12 divisors (see below), whose sum is σ = 307222718400. Its totient is φ = 141138636840.

The previous prime is 212200303207. The next prime is 212200303223. The reversal of 212200303221 is 122303002212.

212200303221 is a `hidden beast` number, since 212 + 200 + 30 + 3 + 221 = 666.

It is not a de Polignac number, because 212200303221 - 2¹⁹ = 212199778933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212200303194 and 212200303203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212200303223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27348571 + ... + 27356328.

It is an arithmetic number, because the mean of its divisors is an integer number (25601893200).

Almost surely, 2^212200303221 is an apocalyptic number.

It is an amenable number.

212200303221 is a deficient number, since it is larger than the sum of its proper divisors (95022415179).

212200303221 is a wasteful number, since it uses less digits than its factorization.

212200303221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54705336 (or 54705333 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212200303221 its reverse (122303002212), we get a palindrome (334503305433).

The spelling of 212200303221 in words is "two hundred twelve billion, two hundred million, three hundred three thousand, two hundred twenty-one".