212200000221 has 8 divisors (see below), whose sum is σ = 308654545824. Its totient is φ = 128606060720.

The previous prime is 212200000193. The next prime is 212200000253. The reversal of 212200000221 is 122000002212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212200000221 - 2⁵ = 212200000189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212200000197 and 212200000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212200004221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3215151486 + ... + 3215151551.

It is an arithmetic number, because the mean of its divisors is an integer number (38581818228).

Almost surely, 2^212200000221 is an apocalyptic number.

It is an amenable number.

212200000221 is a deficient number, since it is larger than the sum of its proper divisors (96454545603).

212200000221 is a wasteful number, since it uses less digits than its factorization.

212200000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6430303051.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 212200000221 its reverse (122000002212), we get a palindrome (334200002433).

It can be divided in two parts, 2 and 12200000221, that multiplied together give a palindrome (24400000442).

The spelling of 212200000221 in words is "two hundred twelve billion, two hundred million, two hundred twenty-one", and thus it is an aban number.