221201102300221 has 16 divisors (see below), whose sum is σ = 242630536075200. Its totient is φ = 200855887118208.

The previous prime is 221201102300177. The next prime is 221201102300303. The reversal of 221201102300221 is 122003201102122.

It is a cyclic number.

It is not a de Polignac number, because 221201102300221 - 2¹³ = 221201102292029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221201102307221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1465084755 + ... + 1465235728.

It is an arithmetic number, because the mean of its divisors is an integer number (15164408504700).

Almost surely, 2^{221201102300221} is an apocalyptic number.

It is an amenable number.

221201102300221 is a deficient number, since it is larger than the sum of its proper divisors (21429433774979).

221201102300221 is a wasteful number, since it uses less digits than its factorization.

221201102300221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930320668.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 221201102300221 its reverse (122003201102122), we get a palindrome (343204303402343).

The spelling of 221201102300221 in words is "two hundred twenty-one trillion, two hundred one billion, one hundred two million, three hundred thousand, two hundred twenty-one".