222321200321221 has 8 divisors (see below), whose sum is σ = 223109864216960. Its totient is φ = 221532558092352.

The previous prime is 222321200321189. The next prime is 222321200321237. The reversal of 222321200321221 is 122123002123222.

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 222321200321221 - 2⁵ = 222321200321189 is a prime.

It is a super-2 number, since 2×222321200321221² (a number of 29 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 (222324200321221) 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, 15281476 + ... + 26041618.

It is an arithmetic number, because the mean of its divisors is an integer number (27888733027120).

Almost surely, 2^{222321200321221} is an apocalyptic number.

It is an amenable number.

222321200321221 is a deficient number, since it is larger than the sum of its proper divisors (788663895739).

222321200321221 is a wasteful number, since it uses less digits than its factorization.

222321200321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10833435.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 222321200321221 its reverse (122123002123222), we get a palindrome (344444202444443).

The spelling of 222321200321221 in words is "two hundred twenty-two trillion, three hundred twenty-one billion, two hundred million, three hundred twenty-one thousand, two hundred twenty-one".