2221223223321 has 12 divisors (see below), whose sum is σ = 3211105028820. Its totient is φ = 1479582489600.

The previous prime is 2221223223313. The next prime is 2221223223361. The reversal of 2221223223321 is 1233223221222.

2221223223321 is a `hidden beast` number, since 2 + 2 + 2 + 1 + 2 + 2 + 322 + 332 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1029656678400 + 1191566544921 = 1014720^2 + 1091589^2 .

It is not a de Polignac number, because 2221223223321 - 2³ = 2221223223313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2221223223361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102737976 + ... + 102759593.

It is an arithmetic number, because the mean of its divisors is an integer number (267592085735).

Almost surely, 2^{2221223223321} is an apocalyptic number.

It is an amenable number.

2221223223321 is a deficient number, since it is larger than the sum of its proper divisors (989881805499).

2221223223321 is a wasteful number, since it uses less digits than its factorization.

2221223223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205498776 (or 205498773 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 2221223223321 its reverse (1233223221222), we get a palindrome (3454446444543).

It can be divided in two parts, 222122 and 3223321, that added together give a palindrome (3445443).

The spelling of 2221223223321 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-three million, two hundred twenty-three thousand, three hundred twenty-one".