221214110321 has 8 divisors (see below), whose sum is σ = 221991424224. Its totient is φ = 220438160640.

The previous prime is 221214110287. The next prime is 221214110419. The reversal of 221214110321 is 123011412122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221214110321 is a prime.

It is a super-2 number, since 2×221214110321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 221214110293 and 221214110302.

It is not an unprimeable number, because it can be changed into a prime (221214140321) 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, 15635 + ... + 665336.

It is an arithmetic number, because the mean of its divisors is an integer number (27748928028).

Almost surely, 2^221214110321 is an apocalyptic number.

It is an amenable number.

221214110321 is a deficient number, since it is larger than the sum of its proper divisors (777313903).

221214110321 is an equidigital number, since it uses as much as digits as its factorization.

221214110321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682111.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 221214110321 its reverse (123011412122), we get a palindrome (344225522443).

The spelling of 221214110321 in words is "two hundred twenty-one billion, two hundred fourteen million, one hundred ten thousand, three hundred twenty-one".