221100210201 has 32 divisors (see below), whose sum is σ = 318135121920. Its totient is φ = 135780019200.

The previous prime is 221100210193. The next prime is 221100210217. The reversal of 221100210201 is 102012001122.

It is not a de Polignac number, because 221100210201 - 2³ = 221100210193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221100210241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62650605 + ... + 62654133.

It is an arithmetic number, because the mean of its divisors is an integer number (9941722560).

Almost surely, 2^221100210201 is an apocalyptic number.

It is an amenable number.

221100210201 is a deficient number, since it is larger than the sum of its proper divisors (97034911719).

221100210201 is a wasteful number, since it uses less digits than its factorization.

221100210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6417.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 221100210201 its reverse (102012001122), we get a palindrome (323112211323).

The spelling of 221100210201 in words is "two hundred twenty-one billion, one hundred million, two hundred ten thousand, two hundred one".