221201102207 has 2 divisors, whose sum is σ = 221201102208. Its totient is φ = 221201102206.

The previous prime is 221201102189. The next prime is 221201102279. The reversal of 221201102207 is 702201102122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221201102207 - 2¹⁴ = 221201085823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221201182207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110600551103 + 110600551104.

It is an arithmetic number, because the mean of its divisors is an integer number (110600551104).

Almost surely, 2^221201102207 is an apocalyptic number.

221201102207 is a deficient number, since it is larger than the sum of its proper divisors (1).

221201102207 is an equidigital number, since it uses as much as digits as its factorization.

221201102207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 221201102207 its reverse (702201102122), we get a palindrome (923402204329).

The spelling of 221201102207 in words is "two hundred twenty-one billion, two hundred one million, one hundred two thousand, two hundred seven".