221202111010201 has 24 divisors (see below), whose sum is σ = 242569017234176. Its totient is φ = 201466408584960.

The previous prime is 221202111010169. The next prime is 221202111010217. The reversal of 221202111010201 is 102010111202122.

It is not a de Polignac number, because 221202111010201 - 2⁵ = 221202111010169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221202111010291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 231265195 + ... + 232219711.

Almost surely, 2^{221202111010201} is an apocalyptic number.

It is an amenable number.

221202111010201 is a deficient number, since it is larger than the sum of its proper divisors (21366906223975).

221202111010201 is a wasteful number, since it uses less digits than its factorization.

221202111010201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980449 (or 980432 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221202111010201 its reverse (102010111202122), we get a palindrome (323212222212323).

The spelling of 221202111010201 in words is "two hundred twenty-one trillion, two hundred two billion, one hundred eleven million, ten thousand, two hundred one".