221200010212 has 48 divisors (see below), whose sum is σ = 409405151232. Its totient is φ = 104455280160.

The previous prime is 221200010209. The next prime is 221200010221. The reversal of 221200010212 is 212010002122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221200010192 and 221200010201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506137 + ... + 835807.

It is an arithmetic number, because the mean of its divisors is an integer number (8529273984).

Almost surely, 2^221200010212 is an apocalyptic number.

It is an amenable number.

221200010212 is a deficient number, since it is larger than the sum of its proper divisors (188205141020).

221200010212 is a wasteful number, since it uses less digits than its factorization.

221200010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329848 (or 329846 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221200010212 its reverse (212010002122), we get a palindrome (433210012334).

The spelling of 221200010212 in words is "two hundred twenty-one billion, two hundred million, ten thousand, two hundred twelve".