222304100221 has 8 divisors (see below), whose sum is σ = 254077746624. Its totient is φ = 190534433280.

The previous prime is 222304100177. The next prime is 222304100267. The reversal of 222304100221 is 122001403222.

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 222304100221 - 2⁹ = 222304099709 is a prime.

It is a super-2 number, since 2×222304100221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222304100021) 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, 874180 + ... + 1099453.

It is an arithmetic number, because the mean of its divisors is an integer number (31759718328).

Almost surely, 2^222304100221 is an apocalyptic number.

It is an amenable number.

222304100221 is a deficient number, since it is larger than the sum of its proper divisors (31773646403).

222304100221 is a wasteful number, since it uses less digits than its factorization.

222304100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989731.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 222304100221 its reverse (122001403222), we get a palindrome (344305503443).

The spelling of 222304100221 in words is "two hundred twenty-two billion, three hundred four million, one hundred thousand, two hundred twenty-one".