2223403041221 has 2 divisors, whose sum is σ = 2223403041222. Its totient is φ = 2223403041220.

The previous prime is 2223403041199. The next prime is 2223403041239. The reversal of 2223403041221 is 1221403043222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1453203729121 + 770199312100 = 1205489^2 + 877610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2223403041221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2223403041241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111701520610 + 1111701520611.

It is an arithmetic number, because the mean of its divisors is an integer number (1111701520611).

Almost surely, 2^{2223403041221} is an apocalyptic number.

It is an amenable number.

2223403041221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2223403041221 is an equidigital number, since it uses as much as digits as its factorization.

2223403041221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 2223403041221 its reverse (1221403043222), we get a palindrome (3444806084443).

The spelling of 2223403041221 in words is "two trillion, two hundred twenty-three billion, four hundred three million, forty-one thousand, two hundred twenty-one".