221232203220233 has 4 divisors (see below), whose sum is σ = 221241301085700. Its totient is φ = 221223105354768.

The previous prime is 221232203220191. The next prime is 221232203220239. The reversal of 221232203220233 is 332022302232122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 193708413618889 + 27523789601344 = 13917917^2 + 5246312^2 .

It is a cyclic number.

It is not a de Polignac number, because 221232203220233 - 2²⁴ = 221232186443017 is a prime.

It is a super-3 number, since 3×221232203220233³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221232203220196 and 221232203220205.

It is not an unprimeable number, because it can be changed into a prime (221232203220239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4548896258 + ... + 4548944891.

It is an arithmetic number, because the mean of its divisors is an integer number (55310325271425).

Almost surely, 2^{221232203220233} is an apocalyptic number.

It is an amenable number.

221232203220233 is a deficient number, since it is larger than the sum of its proper divisors (9097865467).

221232203220233 is an equidigital number, since it uses as much as digits as its factorization.

221232203220233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9097865466.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 221232203220233 its reverse (332022302232122), we get a palindrome (553254505452355).

The spelling of 221232203220233 in words is "two hundred twenty-one trillion, two hundred thirty-two billion, two hundred three million, two hundred twenty thousand, two hundred thirty-three".