221201101222201 has 8 divisors (see below), whose sum is σ = 229002131026944. Its totient is φ = 213529014059040.

The previous prime is 221201101222097. The next prime is 221201101222223. The reversal of 221201101222201 is 102222101102122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221201101222201 - 2⁹ = 221201101221689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221201101222301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32235656905 + ... + 32235663766.

It is an arithmetic number, because the mean of its divisors is an integer number (28625266378368).

Almost surely, 2^{221201101222201} is an apocalyptic number.

It is an amenable number.

221201101222201 is a deficient number, since it is larger than the sum of its proper divisors (7801029804743).

221201101222201 is an equidigital number, since it uses as much as digits as its factorization.

221201101222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64471320791.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221201101222201 its reverse (102222101102122), we get a palindrome (323423202324323).

The spelling of 221201101222201 in words is "two hundred twenty-one trillion, two hundred one billion, one hundred one million, two hundred twenty-two thousand, two hundred one".