221002112002201 has 4 divisors (see below), whose sum is σ = 232633802107600. Its totient is φ = 209370421896804.

The previous prime is 221002112002141. The next prime is 221002112002207. The reversal of 221002112002201 is 102200211200122.

It is a happy number.

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 221002112002201 - 2²³ = 221002103613593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221002112002207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5815845052671 + ... + 5815845052708.

It is an arithmetic number, because the mean of its divisors is an integer number (58158450526900).

Almost surely, 2^{221002112002201} is an apocalyptic number.

It is an amenable number.

221002112002201 is a deficient number, since it is larger than the sum of its proper divisors (11631690105399).

221002112002201 is a wasteful number, since it uses less digits than its factorization.

221002112002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11631690105398.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221002112002201 its reverse (102200211200122), we get a palindrome (323202323202323).

The spelling of 221002112002201 in words is "two hundred twenty-one trillion, two billion, one hundred twelve million, two thousand, two hundred one".