223212332301221 has 2 divisors, whose sum is σ = 223212332301222. Its totient is φ = 223212332301220.

The previous prime is 223212332301199. The next prime is 223212332301269. The reversal of 223212332301221 is 122103233212322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126756952132321 + 96455380168900 = 11258639^2 + 9821170^2 .

It is a cyclic number.

It is not a de Polignac number, because 223212332301221 - 2¹⁰ = 223212332300197 is a prime.

It is a super-3 number, since 3×223212332301221³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223212332301121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111606166150610 + 111606166150611.

It is an arithmetic number, because the mean of its divisors is an integer number (111606166150611).

Almost surely, 2^{223212332301221} is an apocalyptic number.

It is an amenable number.

223212332301221 is a deficient number, since it is larger than the sum of its proper divisors (1).

223212332301221 is an equidigital number, since it uses as much as digits as its factorization.

223212332301221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 223212332301221 its reverse (122103233212322), we get a palindrome (345315565513543).

The spelling of 223212332301221 in words is "two hundred twenty-three trillion, two hundred twelve billion, three hundred thirty-two million, three hundred one thousand, two hundred twenty-one".