2223221221201 has 2 divisors, whose sum is σ = 2223221221202. Its totient is φ = 2223221221200.

The previous prime is 2223221221139. The next prime is 2223221221211. The reversal of 2223221221201 is 1021221223222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1139665137601 + 1083556083600 = 1067551^2 + 1040940^2 .

It is a cyclic number.

It is not a de Polignac number, because 2223221221201 - 2²³ = 2223212832593 is a prime.

It is not a weakly prime, because it can be changed into another prime (2223221221211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111610610600 + 1111610610601.

It is an arithmetic number, because the mean of its divisors is an integer number (1111610610601).

Almost surely, 2^{2223221221201} is an apocalyptic number.

It is an amenable number.

2223221221201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2223221221201 is an equidigital number, since it uses as much as digits as its factorization.

2223221221201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 2223221221201 its reverse (1021221223222), we get a palindrome (3244442444423).

The spelling of 2223221221201 in words is "two trillion, two hundred twenty-three billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred one".