221321202233005 has 12 divisors (see below), whose sum is σ = 308946331280700. Its totient is φ = 151763110102464.

The previous prime is 221321202232993. The next prime is 221321202233099. The reversal of 221321202233005 is 500332202123122.

It can be written as a sum of positive squares in 2 ways, for example, as 36745637465124 + 184575564767881 = 6061818^2 + 13585859^2 .

It is not a de Polignac number, because 221321202233005 - 2⁷ = 221321202232877 is a prime.

It is a super-2 number, since 2×221321202233005² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 451675922680 + ... + 451675923169.

It is an arithmetic number, because the mean of its divisors is an integer number (25745527606725).

Almost surely, 2^{221321202233005} is an apocalyptic number.

It is an amenable number.

221321202233005 is a deficient number, since it is larger than the sum of its proper divisors (87625129047695).

221321202233005 is an equidigital number, since it uses as much as digits as its factorization.

221321202233005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903351845868 (or 903351845861 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 221321202233005 its reverse (500332202123122), we get a palindrome (721653404356127).

The spelling of 221321202233005 in words is "two hundred twenty-one trillion, three hundred twenty-one billion, two hundred two million, two hundred thirty-three thousand, five".