221202201201 has 4 divisors (see below), whose sum is σ = 294936268272. Its totient is φ = 147468134132.

The previous prime is 221202201169. The next prime is 221202201221. The reversal of 221202201201 is 102102202122.

221202201201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221202201201 - 2⁵ = 221202201169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221202201221) 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 3 ways as a sum of consecutive naturals, for example, 36867033531 + ... + 36867033536.

It is an arithmetic number, because the mean of its divisors is an integer number (73734067068).

Almost surely, 2^221202201201 is an apocalyptic number.

It is an amenable number.

221202201201 is a deficient number, since it is larger than the sum of its proper divisors (73734067071).

221202201201 is an equidigital number, since it uses as much as digits as its factorization.

221202201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73734067070.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221202201201 its reverse (102102202122), we get a palindrome (323304403323).

The spelling of 221202201201 in words is "two hundred twenty-one billion, two hundred two million, two hundred one thousand, two hundred one".